CVE-2026-29840
JiZhiCMS Stored Cross-Site Scripting (XSS)
Description
JiZhiCMS v2.5.6 and before contains a Stored Cross-Site Scripting (XSS) vulnerability in the release function within app/home/c/UserController.php. The application attempts to sanitize input by filtering <script> tags but fails to recursively remove dangerous event handlers in other HTML tags (such as onerror in <img> tags). This allows an authenticated remote attacker to inject arbitrary web script or HTML via the body parameter in a POST request to /user/release.html.
INFO
Published Date :
March 24, 2026, 4:16 p.m.
Last Modified :
March 25, 2026, 8:49 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update JiZhiCMS to a patched version.
- Sanitize all HTML input to remove dangerous tags.
- Implement strict input validation for user-submitted data.
- Review and reinforce event handler sanitization.
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-2026-29840.
| URL | Resource |
|---|---|
| http://www.demo.com/user/release/molds/article.html | Broken Link |
| https://gist.github.com/w-p-man/790f51f918499798180a8def3a6fdfb0 | 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-2026-29840 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-2026-29840
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-2026-29840 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-29840 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. 25, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:jizhicms:jizhicms:*:*:*:*:*:*:*:* versions up to (including) 2.5.6 Added Reference Type MITRE: http://www.demo.com/user/release/molds/article.html Types: Broken Link Added Reference Type MITRE: https://gist.github.com/w-p-man/790f51f918499798180a8def3a6fdfb0 Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 -
New CVE Received by [email protected]
Mar. 24, 2026
Action Type Old Value New Value Added Description JiZhiCMS v2.5.6 and before contains a Stored Cross-Site Scripting (XSS) vulnerability in the release function within app/home/c/UserController.php. The application attempts to sanitize input by filtering <script> tags but fails to recursively remove dangerous event handlers in other HTML tags (such as onerror in <img> tags). This allows an authenticated remote attacker to inject arbitrary web script or HTML via the body parameter in a POST request to /user/release.html. Added Reference http://www.demo.com/user/release/molds/article.html Added Reference https://gist.github.com/w-p-man/790f51f918499798180a8def3a6fdfb0