Security readout for executives and security teams
Plain-English summary
CVE-2026-0833 is a stored cross-site scripting issue in the WordPress Team Section Block plugin. A logged-in user with Contributor-level access or higher could place malicious script in a team member social link. That script can run when someone views the affected page.
Executive priority
Treat as a near-term web application hygiene issue, not a confirmed emergency. Prioritize internet-facing WordPress sites with multiple content contributors or weak account controls. Patch or restrict contributor access promptly once vendor guidance is confirmed.
Technical view
The plugin insufficiently sanitizes and escapes user-controlled social network link URLs in its block rendering. Versions up to and including 2.0.0 are described as affected. The CVSS 3.1 score is 6.4, with low privileges required, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is most likely on WordPress sites running Team Section Block <= 2.0.0, especially multi-author sites or sites allowing Contributor-level accounts. Single-admin sites have lower practical exposure unless an account is compromised.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. Abuse requires authenticated WordPress access at Contributor level or higher. Impact increases if administrators or trusted users view pages containing injected plugin content.
Researcher notes
Evidence is strongest for stored XSS in social link URL handling. The bundle’s affected metadata is inconsistent, but the title and description state <= 2.0.0. The referenced WordPress Trac changeset may show code movement or fixes; confirm fixed version before closing tickets.
Mitigation direction
- Inventory WordPress sites for the Team Section Block plugin and its version.
- Prioritize sites running versions up to and including 2.0.0.
- Check WordPress plugin repository or vendor guidance for a fixed release.
- Restrict Contributor-level access to trusted users until remediated.
- Review existing Team Section Block social links for suspicious or unexpected content.
Validation and detection
- Confirm whether Team Section Block is installed and active.
- Record the installed plugin version on each WordPress site.
- Identify users with Contributor, Author, Editor, or Administrator roles.
- Inspect posts or pages using the Team Section Block.
- Verify social network link fields contain only expected URLs.
- After updating, confirm vendor notes indicate sanitization or escaping changes.
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-2026-0833 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
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/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:L/UI:N/S:C/C:L/I:L/A:N3.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/6348b119-a0dc-40ef-ae62-1de86dcefac7?source=cveCVE reference
- https://plugins.trac.wordpress.org/browser/team-section/trunk/build/render.php#L3CVE reference
- https://plugins.trac.wordpress.org/browser/team-section/tags/1.1.0/build/render.php#L3CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3436953%40team-section&new=3436953%40team-section&sfp_email=&sfph_mail=CVE reference
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.