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AppPresser - Security Vulnerability (CVE-2026-121853)

CVE-2026-121853

The AppPresser WordPress plugin before 5.0.0 does not restrict access to two of its REST API endpoints, allowing unauthenticated visitors to retrieve the installed versions of AppPresser, its add-ons, several third-party AppPresser WordPress plugin before 5.0.0 and its .

CVE-2026-121853

UNKNOWN CVSS 0.0 Published 2026-11-13 Updated 2026-11-13
AI Risk Low (6/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P5 Monitor
Severity Band UNKNOWN
CVSS Vector Unspecified
Affected Components 2
Reference Links 1
AI Risk Engine Low (6/100)
Exploitability Low
Active Exploitation No strong signal
Published Exploit Status No public exploit references

Threat Timeline

  1. 2026-11-13 CVE published and first recorded in the threat feed.
  2. 2026-11-13 Record updated with latest vulnerability metadata.
  3. 2026-11-13 AI technical context refreshed for mitigation and impact guidance.
  4. Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 8 hours ago

AI enriched 8 hours ago (2026-11-13 19:03 UTC)

Technical Summary

The AppPresser WordPress plugin before 5.0.0 does not restrict access to two of its REST API endpoints, allowing unauthenticated visitors to retrieve the installed versions of AppPresser, its add-ons, several third-party AppPresser WordPress plugin before 5.0.0 and its .

Potential Impact

Severity is UNKNOWN (CVSS 0.0). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Low based on low-bar exploit prerequisites.

Primary risk drivers: low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 6/100 (Low, Low) with priority P5 Monitor. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

References

What to do about this

Patch on your next cycle Worth fixing, but not ahead of other work.

Fix it

Update AppPresser to 5.0.0 or later.

That is the complete fix. Everything below is what protects you in the meantime.

No Hack Halt control meaningfully contains this one — updating is the remedy. We would rather say so than sell you something that will not help.

Start free

Not sure if you are affected?

Scan your site to see whether it runs AppPresser, and at which version.

Free, no installation, no account. It reads what your site already publishes, then tells you which plugins carry known vulnerabilities and what to do about each one.

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Am I affected by this vulnerability?

You are affected if your site runs AppPresser. Versions below 5.0.0 are vulnerable; that release and later are not. No account is needed to exploit this, so a public site is reachable by anyone.

How do I fix it?

Update AppPresser to version 5.0.0 or later. That is the complete fix.