CVE-2026-57675: WP Photo Album Plus XSS Vulnerability

CVE-2026-57675 Overview

CVE-2026-57675 is an unauthenticated Cross-Site Scripting (XSS) vulnerability affecting the WP Photo Album Plus WordPress plugin in versions 9.2.02.004 and earlier. The flaw is tracked under CWE-79, improper neutralization of input during web page generation. An attacker can inject arbitrary JavaScript that executes in the browser of any visitor who interacts with a crafted link or page. Exploitation does not require authentication, but it does require user interaction. The issue was disclosed through the Patchstack WordPress Vulnerability Advisory.

Critical Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of a victim's browser session, potentially hijacking administrator sessions on affected WordPress sites.

Affected Products

WP Photo Album Plus WordPress plugin versions <= 9.2.02.004
WordPress sites with the vulnerable plugin installed and activated
All hosting environments running the affected plugin build

Discovery Timeline

2026-07-02 - CVE-2026-57675 published to NVD
2026-07-02 - Last updated in NVD database

Technical Details for CVE-2026-57675

Vulnerability Analysis

CVE-2026-57675 is a reflected Cross-Site Scripting (XSS) vulnerability in the WP Photo Album Plus plugin for WordPress. The plugin fails to properly neutralize user-supplied input before including it in output rendered to the browser. An unauthenticated attacker can craft a malicious URL or form submission that embeds JavaScript payloads. When a victim follows the link or interacts with the crafted page, the payload executes in the victim's browser under the site's origin.

The scope is marked as changed, meaning the injected script can affect resources beyond the vulnerable component. Confidentiality, integrity, and availability are each rated low, reflecting the browser-scoped impact rather than direct server compromise. The vulnerability is classified under CWE-79.

Root Cause

The root cause is missing or insufficient output encoding of user-controlled parameters processed by the plugin. Input values are reflected into HTML responses without contextual escaping. This allows HTML and JavaScript syntax supplied by an attacker to be interpreted by the browser rather than rendered as inert text.

Attack Vector

Exploitation occurs over the network and requires the victim to click a crafted link or visit an attacker-controlled page. The attacker delivers the payload through phishing, forum posts, or malicious advertisements. Once the victim interacts with the request, the payload executes in the context of the vulnerable WordPress site. Attackers commonly abuse such flaws to steal session cookies, perform actions as the logged-in user, or pivot to administrator account takeover.

No verified public proof-of-concept code is available. See the Patchstack advisory for additional technical context.

Detection Methods for CVE-2026-57675

Indicators of Compromise

Web server access logs containing requests to WP Photo Album Plus endpoints with <script>, onerror=, onload=, or URL-encoded JavaScript payloads in query parameters.
Referrer headers pointing to unfamiliar external domains that redirect users into plugin-handled URLs.
Unexpected outbound requests from browsers to attacker-controlled domains following visits to plugin pages.

Detection Strategies

Inspect HTTP request logs for parameters targeting WP Photo Album Plus routes that contain HTML metacharacters such as <, >, ", or '.
Deploy a Web Application Firewall (WAF) with signatures for reflected XSS patterns against the WordPress wp-content/plugins/wp-photo-album-plus/ path.
Enumerate installed plugin versions across WordPress fleets and flag installations running <= 9.2.02.004.

Monitoring Recommendations

Alert on WordPress administrator sessions initiated from unusual IPs shortly after a user clicks an external link.
Monitor Content Security Policy (CSP) violation reports for inline script execution on pages served by the plugin.
Correlate WordPress audit logs with browser telemetry to identify anomalous DOM modifications on plugin-rendered pages.

How to Mitigate CVE-2026-57675

Immediate Actions Required

Update WP Photo Album Plus to a version later than 9.2.02.004 as soon as the vendor releases a fixed build.
If a patched version is unavailable, deactivate and remove the plugin until a fix is confirmed.
Force a password reset and session invalidation for all WordPress administrators if exploitation is suspected.

Patch Information

Refer to the Patchstack WordPress Vulnerability Advisory for the authoritative status of vendor patches. Verify the installed plugin version through the WordPress admin dashboard under Plugins after applying updates.

Workarounds

Deploy a WAF rule that strips or blocks HTML metacharacters in query parameters targeting the plugin's endpoints.
Implement a strict Content Security Policy that disallows inline scripts and restricts script sources to trusted origins.
Restrict access to WordPress admin pages by IP allowlist to reduce the impact of session hijacking through XSS.

bash

# Configuration example: restrictive Content-Security-Policy header for WordPress (nginx)
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self';" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "SAMEORIGIN" always;