Quick answers
- Is CVE-2026-115673 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-115673 being exploited in the wild.
- How severe is CVE-2026-115673?
- Informational severity, published 6 November 2026.
- Which products and versions are affected?
- CleanTalk Anti-Spam, Spam FireWall before 6.91.
- Is there a fix for CVE-2026-115673?
- Yes: fixed in 6.91. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-115673 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-115673?
- Check whether you run CleanTalk Anti-Spam or Spam FireWall 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: 6.91
Technical details
The plugin contains a stored cross-site scripting (XSS) vulnerability in its handling of comment author email fields. An unauthenticated attacker can inject arbitrary JavaScript through a comment submission, which persists and executes in the administrator's browser when reviewing flagged comments on the spam-review admin screen. This requires no authentication from the attacker but depends on an admin viewing the malicious comment.
Affected products
- CleanTalk Anti-Spam, Spam FireWall before 6.91
Timeline
- 2026-11-04: disclosed
- 2026-11-06: advisory