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CVE-2024-4158VulnerabilityPublished Updated

CVE-2024-4158: Blocksy (WordPress theme) · Cross-site Scripting

Affects Blocksy (WordPress theme)Source CVE Database V5

0

Not known to be exploited · CVSS 6.4 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 May 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
creativethemeshq BlocksyAffected
  • =0
Fixed in–

AI-suggested

Until an official fix is available, restrict contributor-level permissions to trusted users only and consider disabling or limiting use of the affected 'tagName' parameter if possible. Monitor vendor channels for updates and apply patches promptly once released.

Description

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘tagName’ parameter in versions up to, and including, 2.0.42 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

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