Security readout for executives and security teams
Plain-English summary
This is a stored cross-site scripting issue in the WordPress WP Repost plugin through version 0.1. It requires an authenticated administrator-level user and another user interaction, so broad external compromise is not indicated, but affected sites should still treat it as a plugin security defect.
Executive priority
Handle during normal vulnerability remediation unless the plugin is internet-facing on high-value WordPress sites or administrator accounts are weakly controlled. Prioritize removal or vendor-confirmed remediation because the source bundle does not name a patch.
Technical view
CVE-2023-26534 is CWE-79 stored XSS in OneWebsite WP Repost <=0.1. CVSS 3.1 is 5.9 with network access, low complexity, high privileges required, user interaction required, and changed scope with limited confidentiality, integrity, and availability impact.
Likely exposure
Exposure appears limited to WordPress sites running OneWebsite WP Repost version 0.1 or earlier. The source bundle does not provide CPEs or a clear patched version, so asset validation must confirm plugin presence and version directly.
Exploitation context
The bundle does not report active exploitation, and the CVE is not marked KEV. Exploitation requires admin-level authentication and user interaction, which materially limits likely opportunistic exploitation compared with unauthenticated WordPress bugs.
Researcher notes
Evidence is narrow: the CVE description and Patchstack reference identify authenticated admin+ stored XSS in WP Repost <=0.1, but the bundle lists affected versions as n/a and provides no CPEs or explicit fixed version. Avoid assuming unauthenticated reachability or active exploitation.
Mitigation direction
- Inventory WordPress sites for the wp-repost plugin and confirm installed versions.
- Disable or remove WP Repost where it is unnecessary or unmaintained.
- Check Patchstack and vendor guidance for any fixed release or recommended workaround.
- Restrict administrator accounts to trusted users with MFA enabled.
- Keep WordPress core, themes, and plugins current through normal change control.
Validation and detection
- Review WordPress plugin inventories for OneWebsite WP Repost version 0.1 or earlier.
- Confirm whether the vulnerable plugin is active on production sites.
- Check administrator account lists for unnecessary or stale privileged users.
- Review recent plugin configuration changes for unexpected administrative activity.
- Run an authenticated vulnerability scan that detects vulnerable WordPress plugins.
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-2023-26534 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
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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:H/UI:R/S:C/C:L/I:L/A:L1.73.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/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.