CVE-2026-13764: The Masterstudy - Education WordPress Theme theme for WordPress is vulnerable to Privilege Escalation
Source GCVE Database
Not known to be exploited · CVSS 8.8 High.
Data as of 12 Nov 2026, 13:34 UTC
Thin evidence
One scorer or none| CNA (Wordfence) | CVSS 3.1 | 8.8 |
|---|
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 12 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 12 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| StylemixThemesMasterstudy - Education WordPress Theme | Affected
| Fixed in– |
AI-suggested
Users should monitor the vendor's advisory for updates. Until a fix is available, restrict access to trusted users only and consider disabling or restricting the affected AJAX action if possible.
Description
The Masterstudy Education WordPress Theme contains a privilege escalation vulnerability in all versions up to and including 4.8.151. The flaw arises from missing authorization and nonce validation on a specific AJAX action, allowing authenticated users with Subscriber-level access or higher to escalate their privileges to Administrator by manipulating a transient and exploiting an auto-login flow.
References
- nvd.nist.gov/vuln/detail/CVE-2026-13764 (opens in a new tab)
- docs.stylemixthemes.com/masterstudy-theme-documentation/extra-materials/changelog (opens in a new tab)
- themeforest.net/item/masterstudy-education-center-wordpress-theme/12170274 (opens in a new tab)
- wordfence.com/threat-intel/vulnerabilities/id/ec898f73-d275-4624-911b-89d9a945ff92?source=cve (opens in a new tab)