Security readout for executives and security teams
Plain-English summary
CVE-2023-45106 is a CSRF issue in the WordPress Urvanov Syntax Highlighter plugin through version 2.8.33. A successful attack would require tricking a user into taking an action while authenticated. The published impact is limited integrity impact, not data theft or service outage.
Executive priority
Treat as a moderate WordPress hygiene issue. Prioritize sites where the plugin is installed on public-facing business websites or administered by many users, but this does not currently justify emergency response without exploitation evidence.
Technical view
The vulnerability is CWE-352 Cross-Site Request Forgery in package urvanov-syntax-highlighter, affecting versions <= 2.8.33. CVSS 3.1 is 4.3 with network attack vector, low complexity, no attacker privileges, required user interaction, unchanged scope, and low integrity impact.
Likely exposure
Exposure is likely limited to WordPress sites running Urvanov Syntax Highlighter version 2.8.33 or earlier, especially where authenticated users with relevant WordPress privileges may browse attacker-controlled content.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Available scoring indicates exploitation requires user interaction and primarily affects integrity. No public exploit details are included in the provided sources.
Researcher notes
Evidence is sparse: the bundle identifies CSRF, affected plugin, version threshold, CWE, and CVSS vector, but not the vulnerable endpoint, action, patch version, or detailed remediation. Avoid assuming broader WordPress impact beyond this plugin.
Mitigation direction
- Inventory WordPress sites for urvanov-syntax-highlighter plugin usage.
- Check vendor or Patchstack guidance for a fixed version or official mitigation.
- Update affected plugin installations when a trusted fixed release is identified.
- Disable or remove the plugin where it is not required.
- Review admin browsing hygiene until remediation is complete.
Validation and detection
- Confirm plugin presence and version on each WordPress site.
- Flag installations at version 2.8.33 or earlier.
- Verify whether vendor or Patchstack lists a fixed release.
- Confirm remediation by rechecking plugin version after update or removal.
- Review change logs for any CSRF-related fix confirmation.
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-352: 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-2023-45106 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
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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:U/C:N/I:L/A:N2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.
Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.