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Ultimate Blocks vulnerabilities
Ultimate Blocks has 10 known vulnerabilities in this database. The most recent published record is dated 10 Jun 2025.
- Known vulnerabilities
- 10
- Active installs
- 50,000+
- Latest version
- 3.6.1
- Last updated
- 23 Sep 2026
- Most recent
- 10 Jun 2025
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2025-2918 | Medium 6.4 | Before 3.3.4 | Fixed in 3.3.4 | 10 Jun 2025 |
| Cross-site scripting (XSS) CVE-2025-1312 | Medium 6.4 | Up to 3.2.7 | Fixed in a later version (latest 3.6.1) | 26 Mar 2025 |
| Cross-site scripting (XSS) CVE-2025-1703 | Medium 6.4 | Up to 3.2.7 | Fixed in a later version (latest 3.6.1) | 26 Mar 2025 |
| Cross-site scripting (XSS) CVE-2024-10678 | Medium 5.4 | Before 3.2.4 | Fixed in 3.2.4 | 13 Dec 2024 |
| Cross-site scripting (XSS) CVE-2024-8536 | Medium 5.4 | Before 3.2.2 | Fixed in 3.2.2 | 30 Sep 2024 |
| Cross-site scripting (XSS) CVE-2024-6362 | Medium 4.6 | Before 3.2.0 | Fixed in 3.2.0 | 29 Jul 2024 |
| Cross-site scripting (XSS) CVE-2024-4655 | Medium 5.4 | Before 3.1.9 | Fixed in 3.1.9 | 11 Jul 2024 |
| Cross-site scripting (XSS) CVE-2024-4268 | Medium 6.4 | Before 3.2.0 | Fixed in 3.2.0 | 2 Jul 2024 |
| Cross-site scripting (XSS) CVE-2024-3513 | Medium 6.4 | Before 3.2.0 | Fixed in 3.2.0 | 2 Jul 2024 |
| Cross-site scripting (XSS) CVE-2024-3241 | Medium 5.4 | Before 3.1.7 | Fixed in 3.1.7 | 14 May 2024 |
Read the published descriptions
- CVE-2025-2918, 10 Jun 2025
- The Ultimate Blocks - WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple widgets in all versions up to, and including, 3.3.3 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. CVE record
- CVE-2025-1312, 26 Mar 2025
- The Ultimate Blocks - WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'buttonTextColor’ parameter in all versions up to, and including, 3.2.7 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. CVE record
- CVE-2025-1703, 26 Mar 2025
- The Ultimate Blocks plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘content’ parameter in all versions up to, and including, 3.2.7 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. CVE record
- CVE-2024-10678, 13 Dec 2024
- The Ultimate Blocks WordPress plugin before 3.2.4 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks. CVE record
- CVE-2024-8536, 30 Sep 2024
- The Ultimate Blocks WordPress plugin before 3.2.2 does not validate and escape some of its block attributes before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks CVE record
- CVE-2024-6362, 29 Jul 2024
- The Ultimate Blocks WordPress plugin before 3.2.0 does not validate and escape some of its post-grid block attributes before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks CVE record
- CVE-2024-4655, 11 Jul 2024
- The Ultimate Blocks WordPress plugin before 3.1.9 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks CVE record
- CVE-2024-4268, 2 Jul 2024
- The Ultimate Blocks - WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's blocks in all versions up to, and including, 3.1.9 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. CVE-2024-37457 may be a duplicate of this issue. CVE record
- CVE-2024-3513, 2 Jul 2024
- The Ultimate Blocks - WordPress Blocks Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the title tag (postTitleTag) parameter in all versions up to, and including, 3.1.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor access and higher, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. CVE-2024-6362 appears to be a duplicate of this issue. CVE record
- CVE-2024-3241, 14 May 2024
- The Ultimate Blocks WordPress plugin before 3.1.7 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks CVE record
What to do if you run Ultimate Blocks
If you run Ultimate Blocks, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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