CVE-2024-13551: The ABC Notation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'abcjs' sh

Q: How do I fix CVE-2024-13551?

abc notation: upgrade to newer than 6.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2024-13551 being exploited?

CVE-2024-13551 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-2024-13551 affect?

CVE-2024-13551 affects abc notation. Severity is medium (CVSS 6.4). The ABC Notation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'abcjs' shortcode in all versions up to, and including, 6.1.3 due to insufficient input sanitization and output escaping on user supplied at

Q: How urgent is CVE-2024-13551?

Priority 33/100. Public exploit reference

Routine

MEDIUM 6.4UPGRADE

CVE-2024-13551 is a medium-severity flaw (CVSS 6.4) affecting abc notation. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ABC Notation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'abcjs' shortcode in all versions up to, and including, 6.1.3 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-01-25
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: paulrosen

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

Am I affected?

Timeline

2025-01-25 08:15 UTCPublished CVE record published
2026-06-17 07:02 UTCUpdated Record last modified

paulrosen abc notation UPGRADE

Affected: <= 6.1.3

Fixed in: newer than 6.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy abc-notation || rpm -q abc-notation || abc-notation --version

2. UPGRADE to newer than 6.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade abc-notation

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade abc-notation

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-2024-13551?

abc notation: upgrade to newer than 6.1.3. Exact commands for each OS are on this page.

Is CVE-2024-13551 being exploited?

CVE-2024-13551 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-2024-13551 affect?

CVE-2024-13551 affects abc notation. Severity is medium (CVSS 6.4). The ABC Notation plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'abcjs' shortcode in all versions up to, and including, 6.1.3 due to insufficient input sanitization and output escaping on user supplied at

How urgent is CVE-2024-13551?

Priority 33/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-13550 MEDIUM 6.5 UPGRADE The ABC Notation plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 6.

References

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