Security readout for executives and security teams
Plain-English summary
CVE-2025-31806 is a stored cross-site scripting issue in the WordPress Webling plugin from uSystems, affecting versions through 3.9.0. It appears to require a highly privileged user and victim interaction, so urgency is moderate, not emergency-level, based on the provided sources.
Executive priority
Treat this as a moderate-priority WordPress plugin issue. It is not reported as actively exploited in the provided sources, but stored XSS can support account abuse, session exposure, or content tampering when privileged access is compromised.
Technical view
The issue is CWE-79 improper input neutralization during web page generation in Webling. CVSS 3.1 is 5.9 with network access, low attack complexity, high privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to WordPress sites running the uSystems Webling plugin at version 3.9.0 or earlier. Sites without this plugin, or with unaffected versions, are not indicated as exposed by the supplied bundle.
Exploitation context
The provided bundle does not show CISA KEV listing or active exploitation. The CVSS vector indicates an attacker needs high privileges and user interaction, which reduces broad exploitation likelihood but still matters for compromised admin accounts or insider misuse.
Researcher notes
Evidence is sparse. The bundle identifies stored XSS, CWE-79, CVSS 5.9, affected Webling versions through 3.9.0, and no KEV status. It does not provide a patch version, vulnerable parameter, proof of concept, or official vendor remediation detail.
Mitigation direction
- Inventory WordPress sites for the Webling plugin and record installed versions.
- Prioritize sites running Webling version 3.9.0 or earlier.
- Check uSystems and Patchstack guidance for fixed versions or official remediation.
- Restrict high-privilege WordPress access until remediation is confirmed.
- Disable or remove Webling where it is not business required.
Validation and detection
- Confirm whether Webling is installed and enabled on each WordPress site.
- Compare installed Webling versions against the affected range through 3.9.0.
- Review privileged WordPress accounts that can manage Webling-related content.
- Check administrative content for unexpected script-like entries or suspicious changes.
- Document whether vendor remediation guidance is available for each affected site.
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-2025-31806 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
- 5.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/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:H/UI:R/S:C/C:L/I:L/A:L1.73.7PatchstackVulnerability scoring details
Base CVSS 3.1 score
5.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/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/webling/vulnerability/wordpress-webling-plugin-3-9-0-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.