Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in tormorten FooGallery Captions foogallery-captions allows Reflected XSS.This issue affects FooGallery Captions: from n/a through <= 1.0.2.
Security readout for executives and security teams
Plain-English summary
CVE-2025-23889 is a reflected cross-site scripting issue in the WordPress FooGallery Captions plugin through version 1.0.2. An attacker may trick a user into opening a crafted link that causes script to run in the user’s browser. This can affect confidentiality, integrity, and availability at a limited level.
Executive priority
Treat as a high-priority WordPress plugin review item if the plugin is installed. It is not automatically a server takeover, but XSS can support phishing, session abuse, or content manipulation. Prioritize internet-facing sites and administrative users.
Technical view
The vulnerability is CWE-79 improper neutralization of input during web page generation in tormorten FooGallery Captions, package foogallery-captions. CVSS 3.1 is 7.1: AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. The issue is reflected XSS and requires user interaction but no authentication.
Likely exposure
Exposure is likely limited to WordPress sites that installed FooGallery Captions version 1.0.2 or earlier. The supplied data does not provide CPEs or evidence that other FooGallery products are affected.
Exploitation context
The CVE is not listed as CISA KEV in the provided data, and no cited source states active exploitation. Exploitation requires a victim to interact with attacker-controlled content, such as a malicious link, and succeeds through browser-side script execution.
Researcher notes
Evidence is limited to the CVE data and Patchstack reference. The supplied record states affected through 1.0.2 but does not name a fixed version or specific vulnerable parameter. Avoid assuming exploit availability, patch status, or impact beyond the CVSS and XSS classification.
Mitigation direction
Identify WordPress sites using the FooGallery Captions plugin.
If installed at version 1.0.2 or earlier, check vendor and Patchstack guidance.
Disable or remove the plugin if it is not business-critical.
Apply any vendor-provided fixed version when confirmed by authoritative guidance.
Use standard WordPress hardening and least-privilege admin practices.
Validation and detection
Inventory WordPress plugins for package name foogallery-captions.
Confirm installed plugin version is above affected range, if a fixed version exists.
Review Patchstack and CVE records for updated remediation details.
Check whether the plugin is active on public-facing WordPress sites.
Review web and security logs for unusual requests targeting plugin-related pages.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · medium confidence lookup
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-79 · source CWE mapping
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.