Security readout for executives and security teams
Plain-English summary
CVE-2023-51377 is a broken access control issue in the WordPress Everest Forms plugin through version 2.0.3. The available data indicates a medium-severity integrity risk: an unauthenticated network attacker may be able to perform an action that should require authorization. No provided source confirms active exploitation.
Executive priority
Moderate priority. This is not presented as ransomware-grade or actively exploited, but it affects public WordPress attack surface and may allow unauthorized changes. Handle through the normal vulnerability remediation queue, faster for high-traffic or business-critical sites.
Technical view
The vulnerability is CWE-862 Missing Authorization in WPEverest Everest Forms, affecting versions through 2.0.3. CVSS 3.1 is 5.3 with network attack vector, low complexity, no privileges, and no user interaction. The stated impact is low integrity only, with no confidentiality or availability impact in the vector.
Likely exposure
Exposure is limited to WordPress sites running the Everest Forms plugin at version 2.0.3 or earlier. Because the CVSS vector is unauthenticated and network-accessible, public WordPress sites using the plugin should be prioritized for inventory and version validation.
Exploitation context
The source bundle does not include exploit details, proof-of-concept status, or confirmed active exploitation. The CVE is not listed as KEV in the provided data. Treat this as a plausible web application authorization risk, not as a confirmed actively exploited issue.
Researcher notes
Evidence is sparse. The bundle identifies missing authorization, affected versions through 2.0.3, CVSS 5.3, and low integrity impact, but does not describe the vulnerable endpoint, exact unauthorized action, exploit availability, or named fixed release. Avoid assuming behavior beyond the published record.
Mitigation direction
- Inventory WordPress sites for Everest Forms plugin usage and version.
- Prioritize sites running Everest Forms version 2.0.3 or earlier.
- Check WPEverest, WordPress, or PatchStack guidance for fixed versions or vendor mitigations.
- Temporarily disable the plugin where it is unused or nonessential.
- Review recent form and plugin configuration changes for unexpected activity.
Validation and detection
- Confirm the installed Everest Forms version on each WordPress site.
- Verify whether the plugin is enabled on public-facing sites.
- Review access controls around form management and plugin administrative functions.
- Check WordPress and plugin logs for unexpected configuration or data changes.
- Document affected hosts, plugin versions, and remediation status.
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 lookupCVE-2023-51377 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
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N/S:U/C:N/I:L/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source materials
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.