CVE-2023-53936: Cameleon CMS 2.7.4 contains a persistent cross-site scripting vulnerability that allows authenticated administ

Routine

MEDIUM 4.8DOWNGRADE

CVE-2023-53936 is a medium-severity flaw (CVSS 4.8) affecting camaleon cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cameleon CMS 2.7.4 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts into post titles. Attackers can create posts with embedded SVG scripts that execute when other users mouse over the post title, potentially stealing session cookies and executing arbitrary JavaScript.

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	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-12-18
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: tuzitio

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

Am I affected?

Timeline

2025-12-18 20:15 UTCPublished CVE record published
2026-06-17 06:46 UTCUpdated Record last modified

tuzitio camaleon cms DOWNGRADE

Affected: 2.7.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.7.4

1. Check installed version

apt-cache policy camaleon-cms || rpm -q camaleon-cms || camaleon-cms --version

2. No fixed release: DOWNGRADE to a release before 2.7.4 (Debian / Ubuntu)

apt-cache madison camaleon-cms sudo apt install camaleon-cms=<VERSION_BEFORE_2.7.4> sudo apt-mark hold camaleon-cms

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

dnf --showduplicates list camaleon-cms sudo dnf downgrade camaleon-cms-<VERSION_BEFORE_2.7.4> sudo dnf versionlock add camaleon-cms

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-2023-53936?

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

Is CVE-2023-53936 being exploited?

CVE-2023-53936 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-2023-53936 affect?

CVE-2023-53936 affects camaleon cms. Severity is medium (CVSS 4.8). Cameleon CMS 2.7.4 contains a persistent cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts into post titles. Attackers can create posts with embedded SVG scripts that execute when other

How urgent is CVE-2023-53936?

Priority 26/100. Public exploit reference

Related CVEs

CVE-2026-1776 MEDIUM 6.5 UPGRADE Camaleon CMS versions 2.4.5.0 through 2.9.0, prior to commit f54a77e, contain a path traversal vulnerability i
CVE-2024-46987 HIGH 7.7 UPGRADE Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails
CVE-2024-46986 CRITICAL 9.9 UPGRADE Camaleon CMS is a dynamic and advanced content management system based on Ruby on Rails

References

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