Security readout for executives and security teams
Plain-English summary
CVE-2026-25408 is a broken access control issue in the WordPress Broken Link Notifier plugin. Sites using PluginRx Broken Link Notifier through version 1.3.5 may allow actions without proper authorization. The reported impact is limited to integrity, not data theft or service outage, but exposed WordPress sites should still be reviewed.
Executive priority
Treat this as a routine but timely WordPress plugin remediation item. It is not currently supported as actively exploited in the provided sources, and the rated impact is moderate. Prioritize internet-facing or high-value WordPress sites first, especially where plugin inventory is weak.
Technical view
The CVE describes CWE-862 Missing Authorization in PluginRx Broken Link Notifier, package broken-link-notifier, affecting versions through <= 1.3.5. CVSS 3.1 is 5.3: network-accessible, low complexity, no privileges, no user interaction, unchanged scope, no confidentiality or availability impact, and low integrity impact. Public details do not specify the affected endpoint or exact unauthorized action.
Likely exposure
Exposure is likely limited to WordPress installations with the Broken Link Notifier plugin installed and enabled at affected versions through 1.3.5. The source bundle does not provide evidence of default WordPress exposure beyond the plugin condition.
Exploitation context
The CVSS vector indicates unauthenticated network exploitation is possible without user interaction. However, the provided sources do not include proof-of-concept details, exploitation steps, or confirmation of active exploitation. The CVE is not listed as KEV in the supplied data.
Researcher notes
Public data is sparse. The CVE and Patchstack reference identify missing authorization but do not disclose the exact vulnerable route, capability check, or fixed version in the provided bundle. Note the Patchstack URL references 1.3.4 while the CVE description says through <= 1.3.5; verify against vendor data.
Mitigation direction
- Inventory WordPress sites for the Broken Link Notifier plugin and version.
- Check PluginRx, WordPress plugin repository, and Patchstack guidance for a fixed version.
- Update the plugin if a vendor-supported fixed release is available.
- If no fix is available, consider disabling or removing the plugin where business impact allows.
- Monitor WordPress logs for unexpected plugin-related actions or configuration changes.
Validation and detection
- Confirm whether broken-link-notifier is installed on each WordPress site.
- Record installed plugin versions and compare against <= 1.3.5.
- Review vendor and Patchstack pages for updated remediation status.
- Verify only authorized roles can access plugin functions after remediation.
- Document any compensating controls if the plugin remains enabled.
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-2026-25408 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.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.