CVE-2026-12106: SSRF (CVSS 6.4)

Description

The Auto Upload Images plugin for WordPress is vulnerable to Limited Server-Side Request Forgery in all versions up to, and including, 3.3.2 via the downloadImage function. This makes it possible for authenticated attackers, with contributor-level access and above, to make web requests to arbitrary locations originating from the web application. The plugin uses wp_remote_get() rather than wp_safe_remote_get(), and the validate() method only rejects URLs whose host matches the site's own hostname, failing to block requests to private, loopback, or link-local addresses (e.g., 127.0.0.1, 10.0.0.0/8, 169.254.169.254). Attackers can trigger this by embedding a crafted <img> tag with a src attribute pointing to internal network hosts in post content and submitting it for processing.

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CVSS v3.1 Score

6.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0025

Probability of exploitation

0.15%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

References

Other References

https://plugins.trac.wordpress.org/browser/auto-upload-images/tags/3.3.2/src/ImageUploader.php#L192 https://plugins.trac.wordpress.org/browser/auto-upload-images/tags/3.3.2/src/ImageUploader.php#L48 https://plugins.trac.wordpress.org/browser/auto-upload-images/tags/3.3.2/src/WpAutoUpload.php#L45 https://plugins.trac.wordpress.org/browser/auto-upload-images/tags/3.3.2/src/WpAutoUpload.php#L64 https://plugins.trac.wordpress.org/browser/auto-upload-images/tags/3.3.2/src/WpAutoUpload.php#L96 https://plugins.trac.wordpress.org/changeset?reponame=&old=3693206%40auto-upload-images&new=3693206%40auto-upload-images https://www.wordfence.com/threat-intel/vulnerabilities/id/adda0c06-80c7-4e2b-af18-8b2e6258e39a?source=cve

Frequently Asked Questions

What is CVE-2026-12106? +

The Auto Upload Images plugin for WordPress is vulnerable to Limited Server-Side Request Forgery in all versions up to, and including, 3.3.2 via the downloadImage function. This makes it possible for authenticated attackers, with contributor-level access and above, to make web requests to arbitrary locations originating from the web application. The plugin uses wp_remote_get() rather than wp_safe_remote_get(), and the validate() method only rejects URLs whose host matches the site's own hostname, failing to block requests to private, loopback, or link-local addresses (e.g., 127.0.0.1, 10.0.0.0/8, 169.254.169.254). Attackers can trigger this by embedding a crafted <img> tag with a src attribute pointing to internal network hosts in post content and submitting it for processing. It has a CVSS v3.1 base score of 6.4 (MEDIUM).

How severe is CVE-2026-12106? +

CVE-2026-12106 has a CVSS v3.1 score of 6.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0025, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-12106? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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