Quick answers
- Is CVE-2026-100518 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-100518 being exploited in the wild.
- How severe is CVE-2026-100518?
- Medium severity, with a CVSS score of 5.3, published 6 October 2026.
- Which products and versions are affected?
- WebFactory Ltd Advanced Google reCAPTCHA 5.40 and earlier.
- Is there a fix for CVE-2026-100518?
- Yes: fixed in 5.41. Until then: If unable to update immediately, use Patchstack or similar WordPress security tools to apply mitigation rules that block exploitation attempts until a patch can be deployed. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-100518 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-100518?
- Check whether you run WebFactory Ltd Advanced Google reCAPTCHA 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
- Fixed in: 5.41
If unable to update immediately, use Patchstack or similar WordPress security tools to apply mitigation rules that block exploitation attempts until a patch can be deployed.
Technical details
The plugin contains a broken authentication vulnerability (CWE-287) that permits unauthenticated attackers to bypass login controls or assume the identity of other users. The vulnerability requires no authentication or user interaction and can be exploited remotely. Attackers can gain unauthorized access to WordPress user accounts, potentially leading to full site compromise.
Affected products
- WebFactory Ltd. Advanced Google reCAPTCHA 5.40 and earlier
Timeline
- 2026-10-05: disclosed
- 2026-10-05: advisory