Security readout for executives and security teams
Plain-English summary
CVE-2020-36715 affects a WordPress login/signup popup plugin before version 1.5. A logged-in attacker may change plugin settings without proper authorization and place script content that can run in another user’s browser. This is mainly a website integrity and account-trust risk.
Executive priority
Treat as high priority for WordPress sites using the vulnerable plugin because it can affect site trust, visitor sessions, and administrative integrity. Prioritize internet-facing commerce or login-heavy sites first.
Technical view
The reported weakness is missing authorization checks, CWE-862, in several plugin functions in versions through 1.4. The described impact is stored script injection through plugin settings by an authenticated attacker. Sources rate it high with CVSS 3.1 score 7.4.
Likely exposure
Exposure is likely limited to WordPress sites running the Login/Signup Popup plugin, also identified as Login & Register Customizer, at vulnerable versions up to 1.4. Sites without this plugin are not indicated as affected by the provided sources.
Exploitation context
The bundle does not show CISA KEV listing or confirmed broad active exploitation. One referenced source describes it as a zero-day fixed in the plugin, but the provided evidence does not establish current exploitation at scale.
Researcher notes
Evidence identifies missing capability checks and stored script injection through plugin settings. The provided affected-product metadata is inconsistent, listing defaultStatus as unaffected while the description and title define vulnerable versions through 1.4. Validate against plugin slug and installed version.
Mitigation direction
- Inventory WordPress sites for the affected plugin and version.
- Update beyond the vulnerable versions, following vendor guidance for the fixed release.
- If immediate update is unavailable, disable or remove the plugin until remediated.
- Review plugin settings for unexpected script content or unauthorized changes.
- Restrict WordPress authenticated access to trusted users only.
Validation and detection
- Confirm whether the plugin is installed on each WordPress site.
- Verify installed plugin version is not 1.4 or earlier.
- Review administrative users and recent authenticated activity.
- Inspect affected plugin settings for unexpected scripts or configuration changes.
- Check vendor and Wordfence guidance for fixed-version confirmation.
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-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-36715 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
- High
- CVSS
- 7.4 (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: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.
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:L3.13.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.4HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/96d264fe-e7e1-4eec-b235-9d288bc5a22f?source=cveCVE reference
- https://blog.nintechnet.com/zero-day-vulnerability-fixed-in-wordpress-login-signup-popup-plugin/CVE reference
- https://plugins.trac.wordpress.org/changeset/2304979/easy-login-woocommerceCVE 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.