Security readout for executives and security teams
Plain-English summary
CVE-2026-25307 is a medium-severity cross-site scripting issue in the WordPress XStore Core plugin before version 5.7. An authenticated low-privilege attacker could cause script execution when a user interacts with affected content. This can support account abuse, content tampering, or session-related risks on vulnerable WordPress sites.
Executive priority
Prioritize remediation for public WordPress sites using XStore Core, especially sites allowing user registration or multiple contributor accounts. This is not currently evidenced as actively exploited, but XSS in WordPress can affect brand trust and site integrity.
Technical view
The issue is a DOM-based XSS vulnerability caused by improper neutralization of input during web page generation in 8theme XStore Core, package et-core-plugin. CVSS 3.1 is 6.5 with network attack vector, low complexity, low privileges required, user interaction required, and changed scope.
Likely exposure
Exposure is limited to WordPress sites running 8theme XStore Core versions earlier than 5.7. Sites without this plugin, or already on 5.7 or later, are not indicated as affected by the provided sources.
Exploitation context
The CVSS vector indicates exploitation requires an authenticated low-privilege user and victim interaction. The source bundle does not indicate known active exploitation, and CISA KEV status is false.
Researcher notes
Public details are limited. The CVE and Patchstack entry identify DOM-based XSS in et-core-plugin before 5.7, with PR:L and UI:R. Avoid assuming unauthenticated exploitation or broader product impact unless vendor details confirm it.
Mitigation direction
- Update XStore Core to version 5.7 or later.
- If immediate update is not possible, check 8theme and Patchstack guidance.
- Restrict low-privilege account creation until remediation is confirmed.
- Review WordPress users for unnecessary or suspicious accounts.
Validation and detection
- Inventory WordPress sites using the XStore Core plugin.
- Confirm the installed et-core-plugin version is 5.7 or later.
- Check vulnerability scanners or Patchstack records for CVE-2026-25307 detection.
- Review recent WordPress account and content changes for anomalies.
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-2026-25307 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
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:R/S:C/C:L/I:L/A:L2.33.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/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.