Security readout for executives and security teams
Plain-English summary
CVE-2020-36738 affects the Cool Timeline WordPress plugin through version 2.0.2. A malicious site could trick a logged-in administrator into sending an unintended request that changes saved field-icon settings. Business impact is limited integrity risk, but exposed WordPress sites should still update because admin-driven changes can affect site content or presentation.
Executive priority
Treat this as a routine but real WordPress maintenance item. It is not currently evidenced as exploited in the bundle, but vulnerable plugins on public sites remain operational risk. Patch or disable during the next maintenance window, faster for high-value or heavily administered sites.
Technical view
This is a CWE-352 CSRF issue in the plugin's ctl_save() function caused by missing or incorrect nonce validation. The reported attack requires administrator interaction and can let an unauthenticated attacker save field icons through a forged request. CVSS 3.1 is 4.3 with low integrity impact and no confidentiality or availability impact.
Likely exposure
Exposure is limited to WordPress sites using Cool Timeline (Horizontal & Vertical Timeline) at version 2.0.2 or earlier. The bundle does not identify affected hosting platforms beyond WordPress, and the affected metadata is partly inconsistent with the narrative description.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The attack requires tricking a site administrator into performing an action, such as following a link, while authenticated to WordPress.
Researcher notes
The main evidence points to CSRF in ctl_save() and a WordPress Trac changeset for fa-icons-class.php. Affected metadata is inconsistent: the narrative says versions up to 2.0.2, while the affected entry lists version 0/default unaffected. No exploit status or exact fixed release is provided here.
Mitigation direction
- Update Cool Timeline to a current vendor-supported release containing the CSRF fix.
- If updating is not possible, disable or remove the plugin until vendor guidance is confirmed.
- Review WordPress administrator accounts for unnecessary privileges and stale sessions.
- Remind administrators not to follow untrusted links while authenticated to WordPress.
- Monitor vendor, WordPress plugin, Wordfence, and Nintechnet advisories for specific fixed-version guidance.
Validation and detection
- Inventory WordPress sites for the Cool Timeline plugin and record installed versions.
- Prioritize any instance running version 2.0.2 or earlier for remediation.
- Confirm the plugin code includes nonce validation around ctl_save() or the referenced patched file.
- Review recent administrative changes to timeline icon settings for unexpected modifications.
- Check whether compensating controls limit administrator exposure to untrusted web content.
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-2020-36738 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://www.wordfence.com/threat-intel/vulnerabilities/id/1ce7c895-e94c-46bd-9de1-f5fde29c3475?source=cveCVE reference
- https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/CVE reference
- https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/CVE reference
- https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/CVE reference
- https://plugins.trac.wordpress.org/changeset/2368335/cool-timeline/trunk/fa-icons/fa-icons-class.phpCVE 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.
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.