A URL redirection vulnerability exists in UJCMS 9.6.3 due to improper validation of URLs in the upload and rendering of new block / carouse…

published 2024-12-16 22 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-52772

cvss: 5.4; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

A URL redirection vulnerability exists in UJCMS 9.6.3 due to improper validation of URLs in the upload and rendering of new block / carousel items. This vulnerability allows authenticated attackers to redirect unprivileged users to an arbitrary, attacker-controlled webpage. When an authenticated user clicks on the malicious block item, they are redirected to the arbitrary untrusted domains, where sensitive tokens, such as JSON Web Tokens, can be stolen via a crafted webpage.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 22 mo ago (2024-12-17)

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/cydtseng/Vulnerability-Research/blob/main/ujcms/OpenRedirect-BlockItemUpload.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Classification

Weakness

CWE-601 URL Redirection to Untrusted Site

References

github.com /cydtseng/Vulnerability-Research/blob/main/ujcms/OpenRedirect-BlockItemUpload.md
exploit, third-party-advisory
github.com /dromara/ujcms
product

Sources

CVE List CVE-2024-55452
NVD CVE-2024-55452

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary