CVE-2026-15947Search Atlas SEO <= 2.6.23 - Missing Authorization to Authenticated (Subscriber+) Site-Wide Option Modification via 'metasync_post_types' Parameter
- 4.3MediumCVSS base score
- 0.37%Exploitation in 30 daysEPSS · top 69% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.
Timeline
ID reserved
By Wordfence
- 2 months later
· 2 months 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 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (15 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 4.3.
Affected products
shahrukhlinkgraph · Search Atlas SEO – OTTO AI SEO Automation for WordPress
- affected ≤ 2.6.23
References
References8
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1bfba54f-961d-4889-9272-0020c9fa0801?source=cve (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6364 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L6358 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.17/admin/class-metasync-admin.php#L384 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6364 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L6358 (opens in a new tab)
- https://plugins.trac.wordpress.org/browser/metasync/tags/2.6.16/admin/class-metasync-admin.php#L384 (opens in a new tab)
- https://plugins.trac.wordpress.org/changeset/3676919 (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-2026-83572 (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-2026-15947)Record last updated .