ELEVATED 4 min read 19 Aug 2026

Multiple vulnerabilities in vm2 Leads Today's Security Review

Threat Level: Elevated Tags: cve-2026-47683, cve-2026-47686, cve-2026-47698, cwe-693, cve-2026-17123, cve-2026-19217, cwe-918, cve-2026-72859, cwe-863, cve-2026-71303

Key findings
01
Multiple vulnerabilities in vm2
CRITICAL
An attacker can exploit multiple vulnerabilities in vm2 to cause a denial of service, execute arbitrary code, disclose information or manipulate data. CVE coverage: CVE-2026-47683, CVE-2026-47686, CVE-2026-47698.
02
Multiple vulnerabilities in WP Royal Royal Elementor Addons
HIGH
A remote authenticated attacker can exploit multiple vulnerabilities in WP Royal Royal Elementor Addons to carry out server-side request forgery and cross-site scripting attacks. CVE coverage: CVE-2026-17123, CVE-2026-19217.
03
Vulnerability in Budibase
HIGH
A remote authenticated attacker can exploit a vulnerability in Budibase to manipulate files. CVE coverage: CVE-2026-72859.
04
Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace 'acme_url' with internal IP, bypassing allowlist.
HIGH
Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace acme_url with internal IP, bypassing allowlist. CVE coverage: CVE-2026-71303.
05
Vulnerability in PostgreSQL
MEDIUM
A remote anonymous attacker can exploit a vulnerability in PostgreSQL to cause a denial of service. CVE coverage: CVE-2025-4207.
06
Vulnerability in Red Hat Undertow
MEDIUM
A remote anonymous attacker can exploit a vulnerability in Red Hat Undertow to manipulate files. CVE coverage: CVE-2026-19879.
07
Vulnerability in NGINX
MEDIUM
A remote authenticated attacker can exploit a vulnerability in NGINX NGINX Plus and NGINX to bypass security controls. CVE coverage: CVE-2025-23419.
08
Lemur: SSRF protection in certificate revocation checking bypassable via HTTP redirects and DNS rebinding (incomplete fix for GHSA-54vg-pfh7-jq95).
MEDIUM
Lemur: SSRF protection in certificate revocation checking bypassable via HTTP redirects and DNS rebinding (incomplete fix for GHSA-54vg-pfh7-jq95). CVE coverage: CVE-2026-70667.

Executive assessment

Today's brief leads with Multiple vulnerabilities in vm2. All 8 selected findings retain their own technical scope, action, observed status, and evidence limits.

Finding 01 — Multiple vulnerabilities in vm2

What changed: An attacker can exploit multiple vulnerabilities in vm2 to cause a denial of service, execute arbitrary code, disclose information or manipulate data. CVE coverage: CVE-2026-47683, CVE-2026-47686, CVE-2026-47698.

Technical evidence: CVE-2026-47686; CVSS v3.1 9.9; weakness ['CWE-693']; technical confidence High.

Why it matters: The Critical priority moves this beyond routine tracking and requires exposure validation, remediation, and compromise assessment.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-47686 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2865>)

Finding 02 — Multiple vulnerabilities in WP Royal Royal Elementor Addons

What changed: A remote authenticated attacker can exploit multiple vulnerabilities in WP Royal Royal Elementor Addons to carry out server-side request forgery and cross-site scripting attacks. CVE coverage: CVE-2026-17123, CVE-2026-19217.

Technical evidence: CVE-2026-17123; CVSS v3.1 8.8; weakness ['CWE-918']; technical confidence High.

Why it matters: The High priority moves this beyond routine tracking and requires exposure validation, remediation, and compromise assessment.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-17123 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2859>)

Finding 03 — Vulnerability in Budibase

What changed: A remote authenticated attacker can exploit a vulnerability in Budibase to manipulate files. CVE coverage: CVE-2026-72859.

Technical evidence: CVE-2026-72859; CVSS v4.0 8.3; weakness ['CWE-863']; technical confidence High.

Why it matters: The High priority moves this beyond routine tracking and requires exposure validation, remediation, and compromise assessment.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-72859 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2861>)

Finding 04 — Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace 'acme_url' with internal IP, bypassing allowlist.

What changed: Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace acme_url with internal IP, bypassing allowlist. CVE coverage: CVE-2026-71303.

Technical evidence: CVE-2026-71303; CVSS v3.1 7.7; weakness ['CWE-918']; technical confidence High.

Why it matters: The High priority moves this beyond routine tracking and requires exposure validation, remediation, and compromise assessment.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-71303 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: github.com](<https://github.com/advisories/GHSA-v5rc-cpwc-cfpr>)

Finding 05 — Vulnerability in PostgreSQL

What changed: A remote anonymous attacker can exploit a vulnerability in PostgreSQL to cause a denial of service. CVE coverage: CVE-2025-4207.

Technical evidence: CVE-2025-4207; CVSS v3.1 5.9; weakness ['CWE-126']; technical confidence High.

Why it matters: The Medium priority requires exposure validation and scheduled remediation through normal change control.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2025-4207 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0986>)

Finding 06 — Vulnerability in Red Hat Undertow

What changed: A remote anonymous attacker can exploit a vulnerability in Red Hat Undertow to manipulate files. CVE coverage: CVE-2026-19879.

Technical evidence: CVE-2026-19879; CVSS v3.1 5.3; weakness ['CWE-681']; technical confidence High.

Why it matters: The Medium priority requires exposure validation and scheduled remediation through normal change control.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-19879 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2862>)

Finding 07 — Vulnerability in NGINX

What changed: A remote authenticated attacker can exploit a vulnerability in NGINX NGINX Plus and NGINX to bypass security controls. CVE coverage: CVE-2025-23419.

Technical evidence: CVE-2025-23419; CVSS v3.1 4.3; weakness ['CWE-863']; technical confidence High.

Why it matters: The Medium priority requires exposure validation and scheduled remediation through normal change control.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2025-23419 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: wid.cert-bund.de](<https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2025-0274>)

Finding 08 — Lemur: SSRF protection in certificate revocation checking bypassable via HTTP redirects and DNS rebinding (incomplete fix for GHSA-54vg-pfh7-jq95).

What changed: Lemur: SSRF protection in certificate revocation checking bypassable via HTTP redirects and DNS rebinding (incomplete fix for GHSA-54vg-pfh7-jq95). CVE coverage: CVE-2026-70667.

Technical evidence: CVE-2026-70667; CVSS v3.1 6.3; weakness ['CWE-367', 'CWE-918']; technical confidence High.

Why it matters: The Medium priority requires exposure validation and scheduled remediation through normal change control.

Observed status: Observed in-the-wild exploitation status is unknown.

Action: Map CVE-2026-70667 to owned assets, confirm the affected and fixed versions in the cited source, deploy the applicable remediation, and retain evidence of the exposure decision.

Evidence limits: exploitation status unknown

fixed version or patch state unknown

affected product not structured

[Evidence source: github.com](<https://github.com/advisories/GHSA-f3qq-49m6-rw8f>)

cve-2025-23419cve-2025-4207cve-2026-17123cve-2026-19217cve-2026-19879cve-2026-47683cve-2026-47686cve-2026-47698cve-2026-70667cve-2026-71303

Act on this brief

Map detection coverage gaps for the techniques above, or generate Sigma rules from the named CVEs.