CVE-2025-22306: WordPress Link Whisper Free plugin <= 0.7.7 - Sensitive Data Exposure vulnerability
Insertion of Sensitive Information into Externally-Accessible File or Directory vulnerability in Spencer Haws Link Whisper Free link-whisper.This issue affects Link Whisper Free: from n/a through <= 0.7.7.
Security readout for executives and security teams
Plain-English summary
CVE-2025-22306 is a medium-severity information exposure issue in the WordPress Link Whisper Free plugin. Affected sites may place sensitive information where it can be reached externally. The known impact is limited to confidentiality; the provided sources do not indicate data tampering, service disruption, or confirmed exploitation.
Executive priority
Treat this as a near-term hygiene and exposure-reduction item, not an emergency based on current evidence. Prioritize public WordPress sites and sites handling sensitive content, then remediate during the next maintenance window unless exposed data is found.
Technical view
The issue is CWE-538 in Spencer Haws Link Whisper Free, package link-whisper, affecting versions through 0.7.7. CVSS 3.1 is 5.3: network reachable, low complexity, no privileges, no user interaction, unchanged scope, low confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is likely limited to internet-facing WordPress sites running Link Whisper Free version 0.7.7 or earlier. CVSS indicates unauthenticated network access is sufficient, but the source bundle does not identify specific files, paths, or data types exposed.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source here supports active exploitation. The available evidence supports a remote, unauthenticated information disclosure risk, but does not provide exploit maturity, observed abuse, or weaponized details.
Researcher notes
The source bundle does not identify the exposed file location, sensitive fields, fixed version, or exploit status. Validation should focus on version presence and external file exposure without assuming undocumented paths or impact beyond low confidentiality loss.
Mitigation direction
Inventory WordPress sites for the Link Whisper Free plugin and installed version.
Prioritize sites running Link Whisper Free 0.7.7 or earlier.
Check vendor, WordPress plugin, or Patchstack guidance for an available fixed version.
Upgrade if a vendor-supported fixed release is available.
Disable or remove the plugin where it is not business-critical.
Review exposed web directories for unintended sensitive plugin-generated files.
Validation and detection
Confirm whether Link Whisper Free is installed on each WordPress site.
Record the plugin version and flag 0.7.7 or earlier.
Check public-facing plugin directories for unintended sensitive files.
Review recent web access logs for unusual requests to plugin-related files.
Verify remediation by confirming the vulnerable version is no longer present.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · low confidence lookup
CWE-538: 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.
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.
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-538 · source CWE mapping
Insertion of Sensitive Information into Externally-Accessible File or Directory
Insertion of Sensitive Information into Externally-Accessible File or Directory represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.