CVE-2025-46654: CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but

Q: How do I fix CVE-2025-46654?

codimd: upgrade to newer than 2.2.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-46654 being exploited?

CVE-2025-46654 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-46654 affect?

CVE-2025-46654 affects codimd. Severity is medium (CVSS 4.9). CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file.

Q: How urgent is CVE-2025-46654?

Priority 27/100. Public exploit reference

Routine

MEDIUM 4.9UPGRADE

CVE-2025-46654 is a medium-severity flaw (CVSS 4.9) affecting codimd. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-424
Published	2025-04-26
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: hackmd

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

Am I affected?

Timeline

2025-04-26 21:15 UTCPublished CVE record published
2026-06-17 09:26 UTCUpdated Record last modified

hackmd codimd UPGRADE

Affected: <= 2.2.0

Fixed in: newer than 2.2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade codimd

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade codimd

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2025-46654?

codimd: upgrade to newer than 2.2.0. Exact commands for each OS are on this page.

Is CVE-2025-46654 being exploited?

CVE-2025-46654 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-2025-46654 affect?

CVE-2025-46654 affects codimd. Severity is medium (CVSS 4.9). CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file.

How urgent is CVE-2025-46654?

Priority 27/100. Public exploit reference

Related CVEs

CVE-2024-38354 HIGH 8.1 UPGRADE CodiMD allows realtime collaborative markdown notes on all platforms
CVE-2024-38353 MEDIUM 5.3 UPGRADE CodiMD allows realtime collaborative markdown notes on all platforms

References

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