Security readout for executives and security teams
Plain-English summary
CVE-2025-53347 is a CSRF issue in the WordPress Kalium theme through version 3.18.3. An attacker would need to trick a legitimate user into taking an action, potentially causing a limited unauthorized change. The published severity is medium, with low integrity impact and no stated confidentiality or availability impact.
Executive priority
Treat this as a routine but time-bound WordPress theme remediation item. It does not currently justify emergency response from the provided evidence, but exposed production sites should be inventoried and updated once vendor guidance is confirmed.
Technical view
The vulnerability is classified as CWE-352 Cross-Site Request Forgery. The CVSS 3.1 vector is AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N, scoring 4.3. Sources identify Laborator Kalium as affected through 3.18.3. The bundle does not describe the vulnerable endpoint, specific action, patch version, or confirmed exploitation.
Likely exposure
Exposure is likely limited to WordPress sites using the Laborator Kalium theme at version 3.18.3 or earlier. Sites not using Kalium, or using versions outside the affected range, are not indicated as affected by the provided sources.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source confirms active exploitation. Abuse requires user interaction, consistent with CSRF risk. The available evidence does not identify public exploit code, affected requests, or real-world campaigns.
Researcher notes
The public bundle provides classification, affected product, version range, CVSS, and Patchstack reference, but lacks endpoint-level detail, patch metadata, and exploitation evidence. Validation should avoid assumptions beyond confirming Kalium presence, version, and vendor remediation status.
Mitigation direction
- Check Laborator and Patchstack guidance for a fixed Kalium release.
- Update Kalium if a vendor-supported fixed version is available.
- Remove or disable Kalium where it is not required.
- Limit WordPress administrative access to trusted users only.
- Review high-risk admin workflows for CSRF protections.
Validation and detection
- Inventory WordPress sites for the Kalium theme.
- Confirm installed Kalium versions against the affected range through 3.18.3.
- Review vendor and Patchstack advisories for patch status.
- Check WordPress logs for unusual authenticated configuration changes.
- Verify existing CSRF protections on sensitive theme actions.
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-2025-53347 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.