CVE-2026-29933
YZMCMS Reflected XSS
Description
A reflected cross-site scripting (XSS) vulnerability in the /index/login.html component of YZMCMS v7.4 allows attackers to execute arbitrary Javascript in the context of the user's browser via modifying the referrer value in the request header.
INFO
Published Date :
March 26, 2026, 3:16 p.m.
Last Modified :
March 31, 2026, 9:38 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
- Sanitize all user-supplied input.
- Validate referrer header values.
- Update YZMCMS to a secure version.
- Implement output encoding.
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-2026-29933.
| URL | Resource |
|---|---|
| https://github.com/yzmcms/yzmcms/issues/69 | Exploit Issue Tracking Mitigation Vendor Advisory |
| https://github.com/yzmcms/yzmcms/issues/69 | Exploit Issue Tracking Mitigation Vendor 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-2026-29933 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-2026-29933
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-2026-29933 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-29933 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. 31, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:yzmcms:yzmcms:7.4:*:*:*:*:*:*:* Added Reference Type CISA-ADP: https://github.com/yzmcms/yzmcms/issues/69 Types: Exploit, Issue Tracking, Mitigation, Vendor Advisory Added Reference Type MITRE: https://github.com/yzmcms/yzmcms/issues/69 Types: Exploit, Issue Tracking, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 30, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Added CWE CWE-79 Added Reference https://github.com/yzmcms/yzmcms/issues/69 -
New CVE Received by [email protected]
Mar. 26, 2026
Action Type Old Value New Value Added Description A reflected cross-site scripting (XSS) vulnerability in the /index/login.html component of YZMCMS v7.4 allows attackers to execute arbitrary Javascript in the context of the user's browser via modifying the referrer value in the request header. Added Reference https://github.com/yzmcms/yzmcms/issues/69