CVE-2024-34452: CMSimple_XH 1.7.6 allows XSS by uploading a crafted SVG document.

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MEDIUM 6.1DOWNGRADE

CVE-2024-34452 is a medium-severity flaw (CVSS 6.1) affecting cmsimple xh. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CMSimple_XH 1.7.6 allows XSS by uploading a crafted SVG document.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-06-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cmsimple-xh

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

Am I affected?

Timeline

2024-06-21 22:15 UTCPublished CVE record published
2026-06-17 07:33 UTCUpdated Record last modified

cmsimple-xh cmsimple xh DOWNGRADE

Affected: 1.7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7.6

1. Check installed version

apt-cache policy cmsimple-xh || rpm -q cmsimple-xh || cmsimple-xh --version

2. No fixed release: DOWNGRADE to a release before 1.7.6 (Debian / Ubuntu)

apt-cache madison cmsimple-xh sudo apt install cmsimple-xh=<VERSION_BEFORE_1.7.6> sudo apt-mark hold cmsimple-xh

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

dnf --showduplicates list cmsimple-xh sudo dnf downgrade cmsimple-xh-<VERSION_BEFORE_1.7.6> sudo dnf versionlock add cmsimple-xh

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-2024-34452?

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

Is CVE-2024-34452 being exploited?

CVE-2024-34452 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-2024-34452 affect?

CVE-2024-34452 affects cmsimple xh. Severity is medium (CVSS 6.1). CMSimple_XH 1.7.6 allows XSS by uploading a crafted SVG document.

How urgent is CVE-2024-34452?

Priority 40/100. Public exploit reference

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CVE-2021-47736 HIGH 7.2 DOWNGRADE CMSimple_XH 1.7.4 contains an authenticated remote code execution vulnerability in the content editing functio

References

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