Quick answers
- Is CVE-2026-116857 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-116857 being exploited in the wild.
- How severe is CVE-2026-116857?
- Medium severity, with a CVSS score of 6.5, published 29 October 2026.
- Which products and versions are affected?
- Crocoblock JetSmartFilters through 3.8.6.2.
- Is there a fix for CVE-2026-116857?
- Yes: fixed in 3.8.6.3. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-116857 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-116857?
- Check whether you run Crocoblock JetSmartFilters 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: 3.8.6.3
Technical details
The plugin fails to properly sanitize user input during web page generation, allowing authenticated attackers with contributor-level permissions or above to store malicious JavaScript code that persists in the database. When visitors access pages containing the injected script, the malicious code executes in their browsers, potentially stealing session cookies or credentials. The vulnerability is fixed in version 3.8.6.3.
Affected products
- Crocoblock JetSmartFilters through 3.8.6.2
Timeline
- 2026-10-23: disclosed
- 2026-10-29: advisory