HOMEVULNERABILITIESCVE-2021-29450
MEDIUM

CVE-2021-29450

CWE-200Published: April 15, 2021· Updated: Jun 17, 2026

4.3
CVSS v3.1

Official Description

Wordpress is an open source CMS. One of the blocks in the WordPress editor can be exploited in a way that exposes password-protected posts and pages. This requires at least contributor privileges. This has been patched in WordPress 5.7.1, along with the older affected versions via minor releases. It's strongly recommended that you keep auto-updates enabled to receive the fix.

NVD Source

Technical Analysis

CVE-2021-29450 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

Debian1 product(s)
debian linux
WordPress1 product(s)
wordpress
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhq
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
ADVISORYhttps://wordpress.org/news/category/security/
ADVISORYhttps://www.debian.org/security/2021/dsa-4896
ADVISORYhttps://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhq
ADVISORYhttps://lists.debian.org/debian-lts-announce/2021/04/msg00017.html
ADVISORYhttps://wordpress.org/news/category/security/
ADVISORYhttps://www.debian.org/security/2021/dsa-4896

All References (8)

→
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhqThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/04/msg00017.htmlMailing List · Third Party Advisory
→
https://wordpress.org/news/category/security/Vendor Advisory
→
https://www.debian.org/security/2021/dsa-4896Third Party Advisory
→
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pmmh-2f36-wvhqThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2021/04/msg00017.htmlMailing List · Third Party Advisory
→
https://wordpress.org/news/category/security/Vendor Advisory
→
https://www.debian.org/security/2021/dsa-4896Third Party Advisory

Quick Facts

CVE IDCVE-2021-29450
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
Affected2 vendor(s)
PublishedApr 15, 2021

Related CVEs (CWE-200)

CVE-2008-3010
10.0
CVE-2013-0693
10.0
CVE-2020-13702
10.0
CVE-2022-29165
10.0
CVE-2025-53624
10.0
CVE-2008-1155
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-29450 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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