CVE-2024-13926: The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a po

Q: How do I fix CVE-2024-13926?

wp-syntax: upgrade to newer than 1.2. Exact commands for each OS are on this page.

Q: Is CVE-2024-13926 being exploited?

CVE-2024-13926 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-2024-13926 affect?

CVE-2024-13926 affects wp-syntax. Severity is high (CVSS 7.5). The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a post containing a large number of tags, thereby exploiting a catastrophic backtracking issue in the regular expression processing to

Q: How urgent is CVE-2024-13926?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2024-13926 is a high-severity flaw (CVSS 7.5) affecting wp-syntax. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a post containing a large number of tags, thereby exploiting a catastrophic backtracking issue in the regular expression processing to cause a DoS.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-1333
Published	2025-04-19
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: connections-pro

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

Am I affected?

Timeline

2025-04-19 06:15 UTCPublished CVE record published
2026-06-17 07:03 UTCUpdated Record last modified

connections-pro wp-syntax UPGRADE

Affected: <= 1.2

Fixed in: newer than 1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wp-syntax || rpm -q wp-syntax || wp-syntax --version

2. UPGRADE to newer than 1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wp-syntax

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wp-syntax

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-2024-13926?

wp-syntax: upgrade to newer than 1.2. Exact commands for each OS are on this page.

Is CVE-2024-13926 being exploited?

CVE-2024-13926 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-2024-13926 affect?

CVE-2024-13926 affects wp-syntax. Severity is high (CVSS 7.5). The WP-Syntax WordPress plugin through 1.2 does not properly handle input, allowing an attacker to create a post containing a large number of tags, thereby exploiting a catastrophic backtracking issue in the regular expression processing to

How urgent is CVE-2024-13926?

Priority 47/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

WordPress vulnerabilities

References

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