Security readout for executives and security teams
Plain-English summary
This WordPress uListing plugin issue can let an attacker trick a logged-in user into changing user roles. It affects uListing versions up to and including 2.0.5. The business risk is unauthorized privilege or account role changes, not direct data theft or outage based on the supplied CVSS data.
Executive priority
Treat as a moderate-priority WordPress plugin issue. It is not reported as actively exploited in the supplied sources, but it can affect account integrity if privileged users are tricked. Remediate affected internet-facing WordPress sites during the next normal patch window, sooner for high-value sites.
Technical view
CVE-2021-36877 is a CWE-352 CSRF vulnerability in StylemixThemes uListing for WordPress <= 2.0.5. CVSS 3.1 is 4.3, with network reachability, low attack complexity, no attacker privileges, required user interaction, and low integrity impact. The supplied sources do not include exploit mechanics or complete remediation details.
Likely exposure
Exposure is limited to WordPress sites running the uListing plugin at version 2.0.5 or earlier. Sites with active administrative sessions and users who manage listings or accounts are the most relevant targets. The source bundle does not identify other affected products.
Exploitation context
The supplied bundle does not show active exploitation, and KEV is false. Exploitation requires user interaction, consistent with CSRF: a targeted logged-in user must be induced to trigger an unintended role-changing action. Public detail is limited.
Researcher notes
The key uncertainty is remediation detail: the bundle states affected versions <= 2.0.5 but does not provide a confirmed fixed version or patch note text. Validation should stay focused on installed plugin version, role-change evidence, and vendor guidance rather than inferred fixes.
Mitigation direction
- Inventory WordPress sites for the uListing plugin and record installed versions.
- Prioritize sites running uListing 2.0.5 or earlier for remediation review.
- Check WordPress.org, StylemixThemes, and Patchstack guidance for the fixed version or vendor workaround.
- Restrict administrative access and reduce persistent admin sessions until remediated.
- Review recent account and role changes for unexpected modifications.
Validation and detection
- Confirm whether uListing is installed and enabled on each WordPress site.
- Verify the plugin version is greater than the affected range, if vendor guidance confirms a fixed release.
- Review WordPress user role audit logs or backups for unauthorized role changes.
- Check whether privileged users were recently targeted with suspicious links or messages.
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-2021-36877 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
- CVE List V5 sourceCVE List V5
- https://wordpress.org/plugins/ulisting/#developersCVE reference · x_refsource_CONFIRM
- https://patchstack.com/database/vulnerability/ulisting/wordpress-ulisting-plugin-2-0-5-modify-user-roles-via-cross-site-request-forgery-csrf-vulnerabilityCVE reference · x_refsource_MISC
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.