Security readout for executives and security teams
Plain-English summary
A vulnerable Leyka WordPress donation plugin version can store malicious script content that later runs in another user's browser. That could expose data, alter page behavior, or damage trust when a staff member or visitor views affected content. The supplied record rates this high, but does not confirm active exploitation.
Executive priority
Prioritize remediation for public WordPress sites using Leyka, especially donation workflows. This is high severity because unauthenticated stored XSS can affect users after content is saved, but the supplied evidence does not show confirmed active exploitation.
Technical view
CVE-2023-27450 is an unauthenticated stored XSS issue in Teplitsa of social technologies Leyka for WordPress, described for versions <= 3.29.2. It is mapped to CWE-79 with CVSS 3.1 score 7.1, network attack vector, low complexity, no privileges required, and user interaction required.
Likely exposure
Exposure is likely limited to WordPress sites with the Leyka plugin installed at version 3.29.2 or earlier. The bundle does not provide CPEs or a fixed-version statement, so confirm against local plugin inventory and vendor guidance.
Exploitation context
The source bundle describes unauthenticated stored XSS requiring user interaction. The KEV flag is false, and no provided source reports active exploitation. Treat internet-facing donation or campaign pages as higher priority because they may process public input.
Researcher notes
The record lacks detailed affected-version metadata, CPEs, fixed-version data, and exploit-status confirmation beyond the false KEV flag. Validation should focus on installed Leyka versions, public input paths, and evidence of stored script content without attempting weaponized reproduction.
Mitigation direction
- Inventory WordPress sites for the Leyka plugin and record installed versions.
- If Leyka is <= 3.29.2, check vendor or Patchstack guidance for a fixed release.
- Update to a vendor-supported fixed version if one is available.
- Disable or remove Leyka where no supported fix is available.
- Review affected pages for unexpected script content or unauthorized changes.
Validation and detection
- Confirm Leyka plugin version from WordPress admin or asset inventory.
- Verify whether public Leyka forms accept unauthenticated user-controlled input.
- Review CMS content, donation records, and plugin fields for suspicious script-like content.
- Check web and admin logs for unusual submissions around Leyka workflows.
- Document remediation evidence, including version, date, and affected site list.
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-2023-27450 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.