CVE-2025-31421 Overview
CVE-2025-31421 is a sensitive information disclosure vulnerability affecting the Oblak Studio Srbtranslatin WordPress plugin. The flaw exists in versions up to and including 3.2.0. It is classified under [CWE-538] as insertion of sensitive information into an externally-accessible file or directory. Unauthenticated attackers can retrieve embedded sensitive data over the network without user interaction. The scope is changed, meaning the impact extends beyond the vulnerable component to affect other resources on the WordPress installation.
Critical Impact
Remote unauthenticated attackers can retrieve embedded sensitive data from vulnerable WordPress sites running Srbtranslatin <= 3.2.0, potentially exposing configuration or credential material.
Affected Products
- Oblak Studio Srbtranslatin WordPress plugin versions through 3.2.0
- WordPress sites with the Srbtranslatin plugin installed and activated
- Any site relying on the plugin for Serbian Cyrillic-Latin transliteration
Discovery Timeline
- 2025-04-04 - CVE-2025-31421 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-31421
Vulnerability Analysis
The Srbtranslatin plugin stores sensitive information inside files or directories that are reachable from the public web. Because these resources lack access control, remote clients can request them directly. The attack requires no authentication and no user interaction. The changed scope indicates that data recovered from the plugin can grant access to resources managed by other components of the WordPress stack.
The Exploit Prediction Scoring System places CVE-2025-31421 at a modest probability of exploitation. However, sensitive data disclosure flaws in WordPress plugins are routinely scanned for by opportunistic actors. The vulnerability is categorized as an information disclosure issue rather than a code execution flaw.
Root Cause
The root cause maps to [CWE-538]: the plugin writes or bundles sensitive material into files placed under a web-accessible directory. Standard WordPress plugin directories such as wp-content/plugins/srbtranslatin/ are served by the web server unless explicitly restricted. Without an .htaccess denial, an index redirect, or authentication middleware, HTTP GET requests reach the raw files.
Attack Vector
The attack vector is network-based. An attacker enumerates plugin paths on a target WordPress site and issues direct HTTP requests to files bundled with Srbtranslatin. Successful requests return content that may include configuration values, API keys, or other embedded secrets. See the Patchstack Vulnerability Report for advisory details.
No verified public proof-of-concept exploit code is available at this time. Defenders should still assume automated scanners will probe for the affected paths.
Detection Methods for CVE-2025-31421
Indicators of Compromise
- HTTP GET requests to paths under /wp-content/plugins/srbtranslatin/ targeting non-PHP resource files
- Unusual outbound web scraping patterns focused on WordPress plugin directories from a single source IP
- Access log entries returning 200 OK for files that should not be publicly served
Detection Strategies
- Review web server access logs for direct requests to Srbtranslatin plugin files bypassing normal WordPress routing
- Correlate plugin enumeration attempts with subsequent authentication or API abuse against the same host
- Inventory installed WordPress plugins and flag Srbtranslatin versions <= 3.2.0
Monitoring Recommendations
- Alert on repeated 404 and 200 responses to /wp-content/plugins/* from the same client within a short window
- Deploy a Web Application Firewall (WAF) rule to log or block direct access to plugin static files
- Monitor for the appearance of leaked credentials or tokens tied to the WordPress installation on paste and dark web feeds
How to Mitigate CVE-2025-31421
Immediate Actions Required
- Identify all WordPress instances running Srbtranslatin and confirm the installed version
- Deactivate and remove the plugin if a patched release is not yet available for your version
- Rotate any credentials, API tokens, or secrets that may have been embedded in plugin files
Patch Information
At the time of publication, the advisory identifies all Srbtranslatin releases up to and including 3.2.0 as vulnerable. Site administrators should consult the Patchstack Vulnerability Report and the WordPress plugin repository for the latest fixed version before re-enabling the plugin.
Workarounds
- Restrict direct HTTP access to the plugin directory using web server rules that deny requests to non-PHP files under /wp-content/plugins/srbtranslatin/
- Move any secrets referenced by the plugin out of web-accessible directories and into environment variables or wp-config.php outside the document root
- Place a WAF in front of the site to block plugin path enumeration until a patched version is installed
# Apache: deny direct file access under the vulnerable plugin directory
# Place in wp-content/plugins/srbtranslatin/.htaccess
<FilesMatch "\.(txt|log|json|ini|conf|bak|sql)$">
Require all denied
</FilesMatch>
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
