GHSA-FFQV-44JP-MF9X
Vulnerability from github – Published: 2026-03-24 18:31 – Updated: 2026-03-24 21:31
VLAI?
Details
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 tags but fails to recursively remove dangerous event handlers in other HTML tags (such as onerror in 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.
Severity ?
5.4 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-29840"
],
"database_specific": {
"cwe_ids": [
"CWE-79"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T16:16:30Z",
"severity": "MODERATE"
},
"details": "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 \u003cscript\u003e tags but fails to recursively remove dangerous event handlers in other HTML tags (such as onerror in \u003cimg\u003e 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.",
"id": "GHSA-ffqv-44jp-mf9x",
"modified": "2026-03-24T21:31:23Z",
"published": "2026-03-24T18:31:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-29840"
},
{
"type": "WEB",
"url": "https://gist.github.com/w-p-man/790f51f918499798180a8def3a6fdfb0"
},
{
"type": "WEB",
"url": "http://www.demo.com/user/release/molds/article.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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