CVE-2020-28037 — Improper Check for Unusual or Exceptional Conditions in Wordpress

CWE-754 — Improper Check for Unusual or Exceptional ConditionsCWE-20 — Improper Input Validation8 documents6 sources
Severity
9.8CRITICALNVD
EPSS
12.7%
top 5.98%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
WordpressDebian WordpressDebian Linux+1 more
Timeline
PublishedNov 2
Latest updateMay 24

Description

is_blog_installed in wp-includes/functions.php in WordPress before 5.5.2 improperly determines whether WordPress is already installed, which might allow an attacker to perform a new installation, leading to remote code execution (as well as a denial of service for the old installation).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶debiandebian/wordpress< wordpress 5.5.3+dfsg1-1 (bookworm)
▶NVDwordpress/wordpress< 5.5.2
▶Debianwordpress/wordpress< 5.5.3+dfsg1-1+3

Also affects: Debian Linux 10.0, Fedora 31, 32, 33

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-h2pj-w259-mfcv: is_blog_installed in wp-includes/functions↗2022-05-24
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OSV
CVE-2020-28037: is_blog_installed in wp-includes/functions↗2020-11-02
▶
CVEList
CVE-2020-28037: is_blog_installed in wp-includes/functions↗2020-10-31
▶

📋Vendor Advisories

1
Debian
CVE-2020-28037: wordpress - is_blog_installed in wp-includes/functions.php in WordPress before 5.5.2 imprope...↗2020
▶

💬Community

3
Bugzilla
CVE-2020-28037 wordpress: DoS attack could lead to RCE [fedora-all]↗2020-11-05
▶
Bugzilla
CVE-2020-28037 wordpress: DoS attack could lead to RCE [epel-all]↗2020-11-05
▶
Bugzilla
CVE-2020-28037 wordpress: DoS attack could lead to RCE↗2020-11-05
▶