CVE-2026-28561
wpForo Forum 2.4.14 Stored XSS via Unescaped Forum Description in Templates
Description
wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files. On multisite installations or with a compromised admin account, attackers set a forum description containing HTML event handlers that execute when any user views the forum listing.
INFO
Published Date :
Feb. 28, 2026, 10:16 p.m.
Last Modified :
March 5, 2026, 3:42 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update wpForo Forum to the latest available version.
- Sanitize all user-supplied input used in descriptions.
- Escape output for all forum description fields.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-28561.
| URL | Resource |
|---|---|
| https://wordpress.org/plugins/wpforo/ | Product |
| https://wordpress.org/plugins/wpforo/#developers | Release Notes |
| https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unescaped-forum-description-in-templates | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-28561 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-28561
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-28561 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-28561 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 05, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:gvectors:wpforo_forum:*:*:*:*:*:wordpress:*:* versions from (including) 2.4.0 up to (excluding) 2.4.16 Added Reference Type VulnCheck: https://wordpress.org/plugins/wpforo/ Types: Product Added Reference Type VulnCheck: https://wordpress.org/plugins/wpforo/#developers Types: Release Notes Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unescaped-forum-description-in-templates Types: Third Party Advisory -
New CVE Received by [email protected]
Feb. 28, 2026
Action Type Old Value New Value Added Description wpForo Forum 2.4.14 contains a stored cross-site scripting vulnerability that allows administrators to inject persistent JavaScript via forum description fields echoed without output escaping across multiple theme template files. On multisite installations or with a compromised admin account, attackers set a forum description containing HTML event handlers that execute when any user views the forum listing. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://wordpress.org/plugins/wpforo/ Added Reference https://wordpress.org/plugins/wpforo/#developers Added Reference https://www.vulncheck.com/advisories/wpforo-forum-stored-xss-via-unescaped-forum-description-in-templates