Description
The WP Photo Album Plus plugin for WordPress is vulnerable to authenticated Command Injection in all versions up to, and including, 9.3.02.002 via the `value` parameter of the `update-photo` AJAX action. This is due to insufficient shell escaping within the `wppa_image_magick_a()` function, where the attacker-controlled `value` parameter is concatenated raw — without `escapeshellarg()` — into an ImageMagick command string before being passed to `exec()`; further, `wppa_decode()` actively restores percent-encoded shell metacharacters (e.g., `%26`→`&`, `%23`→`#`) rather than stripping them, allowing crafted payloads to survive sanitization and break out of the ImageMagick argument context. This makes it possible for authenticated attackers holding the plugin-defined `wppa_upload` capability to execute arbitrary operating-system commands as the web-server user, achieving full remote code execution on the underlying server. Exploitation requires ImageMagick to be enabled on the server; the `wppa_upload` capability is a plugin-level privilege that site administrators may grant to lower-privileged WordPress roles via the plugin's Users settings, broadening the pool of potential attackers beyond administrators.
References7
- downloads.wordpress.org/plugin/wp-photo-album-plus.9.3.02.003.z…
- plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3…
- plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3…
- plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3…
- plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3…
- plugins.trac.wordpress.org/browser/wp-photo-album-plus/tags/9.3…
- www.wordfence.com/threat-intel/vulnerabilities/id/fc663d68-ca52…
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 73 · as of 10 November 2026
- CWE
- CWE-77
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