CVE-2026-7430Post Snippets <= 4.0.19 - Authenticated (Administrator+) Stored Cross-Site Scripting via Import
- 4.4MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 84% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Post Snippets plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 4.0.19. This is due to insufficient output escaping of imported snippet content when rendering JavaScript variables in the post editor. Specifically, the `jqueryUiDialog()` method in `WPEditor.php` embeds snippet content directly into JavaScript string literals without escaping double quotes (the quote-escaping code on line 214 is commented out). When snippets are imported via the Import/Export feature, the content bypasses WordPress's `wp_magic_quotes()` (which would otherwise add protective backslashes), allowing double quotes in snippet content to break out of the JavaScript string context. This makes it possible for authenticated attackers, with Administrator-level access and above, to inject arbitrary web scripts via a malicious import file that execute whenever any administrator accesses a post editor page. Please note that this does not affect single-site installations as administrators already have the `unfiltered_html` capability.
Timeline
ID reserved
By Wordfence
- 30 days later
· 30 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| WordfenceCNA (assigner) | 3.1 | Medium4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.4 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.24% · top 84% of all CVEs (14 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 4.4.
Affected products
saadiqbal · Post Snippets – Custom WordPress Code Snippets Customizer
- affected ≤ 4.0.19
References
References8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/59dc2448-491c-478f-a784-c727057b126b?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.0.19/src/PostSnippets/WPEditor.php#L218 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/trunk/src/PostSnippets/WPEditor.php#L218 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.0.19/src/PostSnippets/DBTable.php#L114 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/trunk/src/PostSnippets/DBTable.php#L114 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L20 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L221 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/post-snippets/tags/4.1.1/src/PostSnippets/WPEditor.php#L227 (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)
- EUVD EUVD-2026-33246 (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
[](https://cveledger.app/cve/CVE-2026-7430)Record last updated .