Security readout for executives and security teams
Plain-English summary
ProfilePress versions 3.0.0 through 3.1.3 allowed arbitrary file uploads during registration or profile updates. For a WordPress site, that can let an unauthenticated internet user place malicious files where the site may process them, creating a path to full site compromise. The supplied sources do not show confirmed active exploitation.
Executive priority
Prioritize same-day remediation for any internet-facing WordPress site using affected ProfilePress versions. The issue is critical because exploitation requires no account or user interaction according to the CVSS vector, and successful abuse can affect data confidentiality, site integrity, and availability.
Technical view
CVE-2021-34624 is a CWE-434 unrestricted file upload issue in ProfilePress FileUploader.php. The CVSS 3.1 score is 9.8: network-accessible, low complexity, no privileges, no user interaction, with high confidentiality, integrity, and availability impact. Affected versions are ProfilePress 3.0.0 to 3.1.3.
Likely exposure
Exposure is most likely on WordPress sites running ProfilePress 3.0.0 through 3.1.3, especially where public registration or profile update workflows are enabled. Sites without the plugin, outside that version range, or with the vulnerable upload paths inaccessible are less likely exposed.
Exploitation context
The sources describe the flaw as easily exploitable and the CVSS vector indicates unauthenticated remote reachability. The provided bundle marks CISA KEV as false and does not provide evidence of active exploitation. Treat internet-facing affected sites as urgent because arbitrary file upload can lead to broad compromise.
Researcher notes
The public bundle supports affected range, component, CWE, and CVSS severity. It does not include detailed patch notes, exploit telemetry, or indicators of compromise. Avoid assuming active exploitation. Focus validation on plugin version, exposed registration/profile flows, and evidence of unexpected uploads.
Mitigation direction
- Upgrade ProfilePress beyond versions 3.0.0 through 3.1.3 per vendor guidance.
- If immediate upgrade is impossible, disable ProfilePress until fixed.
- Restrict public registration or profile update access where operationally feasible.
- Review vendor and Wordfence advisories for any additional cleanup guidance.
Validation and detection
- Inventory WordPress sites for installed ProfilePress versions.
- Confirm no site is running ProfilePress 3.0.0 through 3.1.3.
- Check whether public registration or profile update workflows are enabled.
- Review upload directories and web logs for unexpected executable files.
- Verify the remediation state after update or plugin disablement.
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-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. 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 lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-34624 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/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:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/blog/2021/06/easily-exploitable-critical-vulnerabilities-patched-in-profilepress-plugin/CVE reference · x_refsource_MISC
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.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.