Security readout for executives and security teams
Plain-English summary
A WordPress plugin called Post Thumbs has a CSRF flaw that can lead to stored cross-site scripting. If a site uses version 1.5 or earlier, an attacker may be able to cause a logged-in user to save malicious content that later runs in browsers.
Executive priority
Treat this as a high-priority WordPress plugin exposure. Prioritize internet-facing or revenue-critical sites, especially where multiple users have publishing or admin access. Do not assume a patch exists from the provided evidence.
Technical view
CVE-2025-26569 affects Callmeforsox Post Thumbs through 1.5. The CVSS 3.1 score is 7.1: network reachable, low complexity, no attacker privileges, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is WordPress sites running the Post Thumbs plugin, package name post-thumbs, at version 1.5 or earlier. The sources do not provide CPEs or a fixed version.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The risk is still meaningful because CSRF can convert a logged-in user's browser into the action point, and stored XSS can persist beyond the initial interaction.
Researcher notes
The source bundle identifies CWE-352 and describes CSRF leading to stored XSS, but does not include request details, proof-of-concept status, affected roles, or fixed version. Validate exposure through asset inventory rather than exploit reproduction.
Mitigation direction
- Inventory WordPress sites for the Post Thumbs plugin and version.
- Disable or remove the plugin where it is not business-required.
- Check vendor or Patchstack guidance for an official fixed release.
- Update only to a version confirmed by trusted vendor guidance.
- Review WordPress administrative access and reduce unnecessary privileged users.
Validation and detection
- Confirm whether package post-thumbs is installed on each WordPress site.
- Record the installed Post Thumbs version and flag 1.5 or earlier.
- Check whether vendor or Patchstack lists a fixed version.
- Review site content and plugin-managed fields for unexpected script-like content.
- Confirm no public route relies on the plugin before removal.
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-2025-26569 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.
SSVC decision data
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:L2.83.7PatchstackVulnerability 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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://patchstack.com/database/wordpress/plugin/post-thumbs/vulnerability/wordpress-post-thumbs-plugin-1-5-csrf-to-stored-xss-vulnerability?_s_id=cveCVE reference, Patchstack · vdb-entry
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.