LiveActive security incident?Get immediate response
CVE Record

CVE-2021-42359: WP DSGVO Tools (GDPR) <= 3.1.23 Unauthenticated Arbitrary Post Deletion

WP DSGVO Tools (GDPR) <= 3.1.23 had an AJAX action, ‘admin-dismiss-unsubscribe‘, which lacked a capability check and a nonce check and was available to unauthenticated users, and did not check the post type when deleting unsubscription requests. As such, it was possible for an attacker to permanently delete an arbitrary post or page on the site by sending an AJAX request with the “action” parameter set to “admin-dismiss-unsubscribe” and the “id” parameter set to the post to be deleted. Sending such a request would move the post to the trash, and repeating the request would permanently delete the post in question.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A vulnerable WordPress GDPR plugin could let anyone on the internet delete site posts or pages without logging in. The main business risk is loss of public content and website availability, not data theft. The source bundle does not show active exploitation.

Executive priority

Treat as high priority for affected public WordPress sites because it can erase business-critical website content without credentials. Prioritize remediation where the plugin is active on production or high-traffic properties.

Technical view

WP DSGVO Tools (GDPR) versions up to 3.1.23 expose the admin-dismiss-unsubscribe AJAX action without capability or nonce checks. It also fails to restrict deletion to the intended post type, allowing arbitrary posts or pages to be trashed and then permanently deleted. CVSS is 7.5, CWE-284.

Likely exposure

Exposure is limited to WordPress sites running Legalweb WP DSGVO Tools (GDPR) version 3.1.23 or earlier. Internet-facing WordPress sites are at higher operational risk because exploitation requires no authentication or user interaction.

Exploitation context

The provided sources describe unauthenticated network exploitation with low complexity. CISA KEV status is false in the bundle, and no cited source here confirms active exploitation in the wild.

Researcher notes

The flaw is an authorization and CSRF-control failure around a WordPress AJAX action, compounded by missing post-type validation. Evidence supports availability impact only; confidentiality and integrity impacts are not claimed in the supplied CVSS vector.

Mitigation direction

  • Inventory WordPress sites for WP DSGVO Tools (GDPR) installations.
  • Upgrade or remove affected versions according to vendor or WordPress plugin guidance.
  • If no safe update is available, disable the plugin until remediated.
  • Maintain recent backups for rapid restoration of deleted posts or pages.
  • Review site roles and plugin governance for unnecessary legacy plugins.

Validation and detection

  • Confirm whether the plugin is installed and version is 3.1.23 or earlier.
  • Verify remediation by checking the installed plugin version or removal status.
  • Review content trash, deletion history, and backups for unexpected missing pages.
  • In a safe test environment, confirm the affected AJAX action requires authorization and nonce checks.
Prepared
Confidence
high
Sources
3

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 · medium confidence lookup

CWE-284: 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 lookup
cve · low confidence lookup

CVE-2021-42359 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

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.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-42359Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
legalwebWP DSGVO Tools (GDPR)3.1.23Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.