CVE-2026-56045 ValvePress CVE debrief

Who should care

Defenders responsible for Automatic plugin deployments should assess exposure and prioritize remediation for this high-severity XSS vulnerability.

Why it matters

CVE-2026-56045 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability in Automatic plugin versions before 3.135.1, requiring defenders to assess exposure and prioritize remediation.

• Defenders must verify inventory for potential impact and assess exposure to this high-severity XSS vulnerability.
• Remediation priority is high due to the unauthenticated nature of the vulnerability.
• Defensive consequences include potential XSS attacks on affected systems.

Technical summary

CVE-2026-56045 is a high-severity unauthenticated Cross Site Scripting (XSS) vulnerability in Automatic plugin versions before 3.135.1, with a CVSS score of 7.1.

Defensive priority

Defenders should prioritize verifying inventory and assessing exposure to this high-severity XSS vulnerability in Automatic plugin versions before 3.135.1.

Recommended defensive actions

• Verify inventory for Automatic plugin versions before 3.135.1
• Assess exposure to this high-severity XSS vulnerability
• Prioritize remediation for affected systems

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, with the NVD entry currently listed as Deferred.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.