What’s Vulnerable › Vulnerabilities

CVE-2025-4339: TheGem <= 5.10.3 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Theme Options Update

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-13 · updated 2026-06-17
• Weakness: CWE-862

Description

The TheGem theme for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the ajaxApi() function in all versions up to, and including, 5.10.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update arbitrary theme options.

Affected products

• CodexThemes TheGem: through 5.10.3

References

• https://codex-themes.com/thegem/changelog.html
• https://themeforest.net/item/thegem-creative-multipurpose-highperformance-wordpress-theme/16061685
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f2358979-25b9-4c52-88dc-25390be6bd22?source=cve

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