Security readout for executives and security teams
Plain-English summary
CVE-2025-58209 is a stored cross-site scripting issue in the WordPress Transcoder plugin by rtCamp, affecting versions through 1.4.0. A lower-privileged authenticated user could store unsafe content that later runs in another user’s browser. The available sources rate this as medium severity, not a confirmed mass-exploitation emergency.
Executive priority
Treat this as a medium-priority WordPress plugin exposure. It is not supported by KEV or cited active exploitation evidence, but stored XSS can affect administrator sessions and site integrity, so internet-facing WordPress estates should identify and remediate affected installations promptly.
Technical view
The issue is CWE-79 improper neutralization during web page generation in the Transcoder WordPress plugin. CVSS 3.1 is 6.5 with network access, low complexity, low privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites running the rtCamp Transcoder plugin at version 1.4.0 or earlier. Risk is higher where untrusted or lower-privileged users can submit plugin-handled content viewed by administrators or other privileged users.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not marked KEV. The CVSS vector indicates exploitation requires authenticated low-privilege access and user interaction, consistent with stored XSS that triggers when another user views affected generated content.
Researcher notes
Evidence identifies stored XSS in rtCamp Transcoder through 1.4.0, but the bundle does not provide sink details, a fixed version, proof of exploitation, or vendor patch notes. Avoid assuming exploitability beyond the CVSS prerequisites and affected version range.
Mitigation direction
- Inventory WordPress sites for the Transcoder plugin and record installed versions.
- Check rtCamp, WordPress, and Patchstack guidance for a fixed release or official workaround.
- Update the plugin if a vendor-supported fixed version is available.
- Disable or remove the plugin where it is unnecessary or cannot be safely updated.
- Limit plugin access to trusted users until remediation is confirmed.
Validation and detection
- Confirm whether the plugin slug or package name transcoder is installed.
- Verify installed versions are not 1.4.0 or earlier.
- Review WordPress roles allowed to submit plugin-handled content.
- Check vendor advisories for remediation status before closing the finding.
- Review recent content changes for suspicious script-like input.
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-2025-58209 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
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:R/S:C/C:L/I:L/A:L2.33.7PatchstackVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/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/transcoder/vulnerability/wordpress-transcoder-plugin-1-4-0-cross-site-scripting-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.
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.