Quick answers
- Is CVE-2026-83562 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83562 being exploited in the wild.
- How severe is CVE-2026-83562?
- Medium severity, with a CVSS score of 6.5, published 2 September 2026.
- Which products and versions are affected?
- WC Lovers WCFM Marketplace 3.8.2 and earlier.
- Is there a fix for CVE-2026-83562?
- A patch was published on 2026-08-31: Fixed in version 3.8.3 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-83562 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-83562?
- Check whether anything you run is named in the advisory. 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.
Technical details
The vulnerability is a reflected or stored cross-site scripting (XSS) flaw in WCFM Marketplace versions up to and including 3.8.2. The vulnerability requires a contributor-level user account to exploit, meaning an attacker must either possess legitimate credentials or compromise an existing contributor account. The XSS injection occurs through an unvalidated input field accessible to contributors. Successful exploitation allows injection of arbitrary JavaScript that executes in the context of other users' browsers, enabling session hijacking, credential theft, or malware delivery. The vulnerability has been patched in version 3.8.3 and later.
Affected products
- WC Lovers WCFM Marketplace 3.8.2 and earlier
Timeline
- 2026-07-13: disclosed: Reported by Ananda Dhakal to Patchstack
- 2026-08-31: advisory: Published by Patchstack
- 2026-08-31: patched: Fixed in version 3.8.3