Security readout for executives and security teams
Plain-English summary
CVE-2026-25347 is a stored cross-site scripting issue in the WordPress WP REST Cache plugin through version 2026.1.0. A successful attack could cause malicious script to run in a user’s browser when they view affected content. This can expose data or alter actions within the victim’s session.
Executive priority
Treat as a high-priority WordPress plugin issue where the plugin is deployed, especially on public sites. Business urgency is elevated because stored XSS can affect trusted users, but current sources do not show active exploitation or name a confirmed patch.
Technical view
The CVE describes CWE-79 improper input neutralization during page generation in Acato WP REST Cache. CVSS 3.1 is 7.1 high: network exploitable, low complexity, no privileges required, user interaction required, scope changed, and low confidentiality, integrity, and availability impact. Public sources do not identify the affected parameter or a fixed release.
Likely exposure
WordPress sites using the WP REST Cache plugin at version 2026.1.0 or earlier are the stated exposure. Sites not using this plugin are not indicated as affected by the supplied sources.
Exploitation context
The issue is stored XSS and requires a victim to interact with affected content. The source bundle does not report active exploitation, and the CVE is not listed as KEV. No public exploit details are provided in the supplied sources.
Researcher notes
Evidence is limited to the CVE record and Patchstack entry. The public data confirms stored XSS, affected plugin and version range, CVSS, and CWE. It does not provide a vulnerable parameter, proof of concept, exploit activity, or confirmed remediation version.
Mitigation direction
- Inventory WordPress sites for the WP REST Cache plugin.
- Identify any installations running version 2026.1.0 or earlier.
- Check Patchstack and vendor guidance for a fixed release or official mitigation.
- Prioritize remediation on public or high-traffic WordPress sites.
- Monitor affected sites for unexpected script content or suspicious page changes.
Validation and detection
- Confirm whether wp-rest-cache is installed on each WordPress site.
- Record the installed plugin version and compare against <= 2026.1.0.
- Review CVE and Patchstack entries for updated fix information.
- Check whether business-critical users can access affected cached REST content.
- Review security logs for unusual content modifications or script injection indicators.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-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.
Open ATT&CK lookupCVE-2026-25347 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L2.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
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.