CVE-2023-1027 json
WP Meta SEO <= 4.5.3 - Missing Authorization in 'checkAllCategoryInSitemap'
published 2023-02-28 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-23319
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
The WP Meta SEO plugin for WordPress is vulnerable to unauthorized sitemap generation due to a missing capability check on the checkAllCategoryInSitemap function in versions up to, and including, 4.5.3. This makes it possible for authenticated attackers with subscriber-level access to obtain post categories. This vulnerability occurred as a result of the plugin relying on nonce checks as a means of access control, and that nonce being accessible to all authenticated users regardless of role.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected products
- joomunited WP Meta SEO
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
-
plugins.trac.wordpress.org
/changeset/2870465/wp-meta-seo/trunk?contextall=1&old=2869205&old_path=%2Fwp-meta-seo%2Ftrunk#file2
patch
-
plugins.trac.wordpress.org
/changeset?sfp_email=&sfph_mail=&reponame=&old=2870465%40wp-meta-seo&new=2870465%40wp-meta-seo&sfp_email=&sfph
patch
- wordfence.com /threat-intel/vulnerabilities/id/4f589e21-7417-4b43-b580-4f1d3c2041f4?source=cve
-
wordfence.com
/threat-intel/vulnerabilities/id/4f589e21-7417-4b43-b580-4f1d3c2041f4
broken-link
Sources
- CVE List CVE-2023-1027
- NVD CVE-2023-1027
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.