Quick answers
- Is CVE-2026-61991 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-61991 being exploited in the wild.
- How severe is CVE-2026-61991?
- Critical severity, with a CVSS score of 10, published 29 October 2026.
- Which products and versions are affected?
- Ajax Load More Cache 3.1.1 and earlier.
- Is there a fix for CVE-2026-61991?
- No fixed version is recorded yet. Until an official patch is available, use a Web Application Firewall (WAF) or security plugin like Patchstack to apply mitigation rules that block exploitation attempts against this vulnerability. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-61991 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-61991?
- Check whether you run Ajax Load More Cache at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
Until an official patch is available, use a Web Application Firewall (WAF) or security plugin like Patchstack to apply mitigation rules that block exploitation attempts against this vulnerability.
Technical details
The vulnerability is a remote code execution flaw in Ajax Load More Cache plugin versions 3.1.1 and earlier that does not require authentication to exploit. An attacker can leverage an injection vulnerability (likely in parameter handling) to execute arbitrary commands on the affected server. No official patch is currently available, though mitigation rules can block exploitation attempts.
Affected products
- Ajax Load More Ajax Load More Cache 3.1.1 and earlier
Timeline
- 2026-10-13: disclosed
- 2026-10-29: advisory