Security readout for executives and security teams
Plain-English summary
CVE-2026-25357 is a high-severity account takeover issue in the WordPress Ultimate Membership Pro plugin through version 13.7. An unauthenticated attacker may be able to bypass authentication through an alternate path. For sites using this membership plugin, compromise could affect member accounts, site administration, data confidentiality, and content integrity.
Executive priority
Prioritize this for any business-critical WordPress site using Ultimate Membership Pro, especially paid membership, customer portal, or data-collection sites. The business risk is account compromise and potential site takeover. If the plugin is not present, no action is needed beyond confirming inventory.
Technical view
The CVE describes CWE-288, Authentication Bypass Using an Alternate Path or Channel, in azzaroco Ultimate Membership Pro, package indeed-membership-pro, affecting versions through 13.7. CVSS 3.1 is 8.1 with network access, no privileges, no user interaction, high impact, and high attack complexity. Public details do not include exploit mechanics or a confirmed fixed version.
Likely exposure
Exposure is limited to WordPress sites running Ultimate Membership Pro/indeed-membership-pro at version 13.7 or earlier. Sites not using this plugin are not affected based on the provided sources. Internet-facing membership sites have higher business relevance because authentication and account integrity are central to the plugin’s purpose.
Exploitation context
The CVE is not listed as CISA KEV in the provided bundle, and no cited source confirms active exploitation. The flaw is remotely reachable and unauthenticated, but rated high complexity. Public source detail is sparse, so defenders should treat this as serious without assuming exploitation is currently widespread.
Researcher notes
The available record provides classification, affected range, CVSS, and a Patchstack reference, but not root-cause detail, exploit prerequisites beyond CVSS, or fixed-version data. Note the source bundle includes an affected entry with version “0” and defaultStatus “unaffected,” while the description states through <=13.7; validate against vendor/Patchstack updates.
Mitigation direction
- Identify all WordPress sites using Ultimate Membership Pro / indeed-membership-pro.
- Check whether installed versions are 13.7 or earlier.
- Review Patchstack and vendor guidance for a fixed release or official mitigation.
- Update the plugin if an official fixed version is available.
- If no fix is available, consider disabling the plugin until guidance is published.
- Increase monitoring for suspicious account changes and unexpected administrator activity.
Validation and detection
- Verify plugin presence and version across WordPress environments.
- Confirm whether each instance is version 13.7 or earlier.
- Review recent user account, role, password, and administrator changes.
- Check authentication logs for unusual successful logins or session behavior.
- Document remediation status for each affected site.
- Re-check public advisories for updated affected-version and fix information.
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-288: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-25357 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
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Authentication Bypass Using an Alternate Path or Channel
Authentication Bypass Using an Alternate Path or Channel represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.