CodeMirror Blocks <= 1.2.4 - Authenticated (Contributor+) Stored Cross-Site Scripting

Description

The CodeMirror Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Code Mirror block in all versions up to, and including, 1.2.4 due to insufficient input sanitization and output escaping. 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.

Scores

EPSS (exploitation in 30 days)

0.44% · top 61% of all CVEs (7 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.4.

Weakness

• CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (opens in a new tab)All about CWE-79 and its CVEs

Affected products

• vickyagravat · CodeMirror Blocks

  • affected ≤ 1.2.4

References (3)

• https://www.wordfence.com/threat-intel/vulnerabilities/id/52569aac-1e9e-40fb-9ff4-5eeb7940375d?source=cve (opens in a new tab)x_transferred
• https://wordpress.org/plugins/wp-codemirror-block/ (opens in a new tab)x_transferred
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3057710%40wp-codemirror-block&new=3057710%40wp-codemirror-block&sfp_email=&sfph_mail= (opens in a new tab)

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2024-1791](https://trackcve.app/badge/CVE-2024-1791.svg)](https://trackcve.app/cve/CVE-2024-1791)

Record last updated 8 Apr 2026, 16:52 UTC.