CVE-2024-55451: A Stored Cross-Site Scripting (XSS) vulnerability exists in authenticated SVG file upload and viewing function

Routine

MEDIUM 4.8DOWNGRADE

CVE-2024-55451 is a medium-severity flaw (CVSS 4.8) affecting ujcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Stored Cross-Site Scripting (XSS) vulnerability exists in authenticated SVG file upload and viewing functionality in UJCMS 9.6.3. The vulnerability arises from insufficient sanitization of embedded attributes in uploaded SVG files. When a maliciously crafted SVG file is viewed by other backend users, it allows authenticated attackers to execute arbitrary JavaScript in the context of other backend users' browsers, potentially leading to the thef

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 75%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-12-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ujcms

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-12-16 23:15 UTCPublished CVE record published
2026-06-17 08:11 UTCUpdated Record last modified

ujcms ujcms DOWNGRADE

Affected: 9.6.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.6.3

1. Check installed version

apt-cache policy ujcms || rpm -q ujcms || ujcms --version

2. No fixed release: DOWNGRADE to a release before 9.6.3 (Debian / Ubuntu)

apt-cache madison ujcms sudo apt install ujcms=<VERSION_BEFORE_9.6.3> sudo apt-mark hold ujcms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ujcms sudo dnf downgrade ujcms-<VERSION_BEFORE_9.6.3> sudo dnf versionlock add ujcms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-55451?

ujcms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-55451 being exploited?

CVE-2024-55451 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-55451 affect?

CVE-2024-55451 affects ujcms. Severity is medium (CVSS 4.8). A Stored Cross-Site Scripting (XSS) vulnerability exists in authenticated SVG file upload and viewing functionality in UJCMS 9.6.3. The vulnerability arises from insufficient sanitization of embedded attributes in uploaded SVG files. When a

How urgent is CVE-2024-55451?

Priority 28/100. Public exploit reference

Related CVEs

CVE-2026-2954 MEDIUM 6.3 DOWNGRADE A vulnerability was found in Dromara UJCMS 10.0.2
CVE-2026-2953 MEDIUM 5.4 DOWNGRADE A vulnerability has been found in Dromara UJCMS 101.2
CVE-2025-2491 LOW 2.4 DOWNGRADE A vulnerability classified as problematic has been found in Dromara ujcms 9.7.5
CVE-2025-2490 LOW 2.4 DOWNGRADE A vulnerability was found in Dromara ujcms 9.7.5
CVE-2024-55452 MEDIUM 5.4 DOWNGRADE A URL redirection vulnerability exists in UJCMS 9.6.3 due to improper validation of URLs in the upload and ren

References

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