Information disclosure in Extendthemes Image Hub – Free Images From Unsplash, Pixabay, Pexels, Openverse & Giphy
CVE-2026-109191
The Image Hub – Free Images from Unsplash, Pixabay, Pexels, Openverse & Giphy plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.2.0 via the 'image_hub_api_keys_* (6 options)' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract the plaintext API credentials for six third-party services — Giphy, Openverse (client ID and secret), Pexels, Pixabay, and Unsplash — emitted verbatim into every admin page's HTML via wp_localize_script. The leaked page HTML also contains a valid image_hub_nonce AJAX nonce, which — combined with the absence of any capability check in the image_hub_update_settings AJAX handler — allows the same Subscriber-level attacker to overwrite all six stored API credential options via update_option().
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/99d1e0cc-1fd0-47f7-8b73-33663…
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/MediaModal.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/MediaModal.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/Settings.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/image-hub.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/Settings.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/MediaModal.php
- plugins.trac.wordpress.org/browser/image-hub/tags/1.2.0/inc/src/Utils.php
- plugins.trac.wordpress.org/changeset/3745452/image-hub/trunk/inc/src/MediaModal…
Frequently asked questions
- What is CVE-2026-109191?
- CVE-2026-109191 is a medium-severity vulnerability in Extendthemes Image Hub – Free Images From Unsplash, Pixabay, Pexels, Openverse & Giphy, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-10-16.
- How severe is CVE-2026-109191?
- Medium severity. CVSS v3 base score is 4.3 out of 10.