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Fencer Vulns
medium 5.9

CVE-2022-3590 json

WP <= 6.1.1 - Unauthenticated Blind SSRF via DNS Rebinding

published 2022-12-14 3 y ago modified 2026-09-08 2 mo ago also BIT-wordpress-2022-3590 , BIT-wordpress-multisite-2022-3590 , EUVD-2022-42954

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known, plus a Nuclei check

Summary

WordPress is affected by an unauthenticated blind SSRF in the pingback feature. Because of a TOCTOU race condition between the validation checks and the HTTP request, attackers can reach internal hosts that are explicitly forbidden.

Patch / fix

  • bitnami wordpress 4.1.1, 6.1.2
  • bitnami wordpress-multisite 4.1.1, 6.1.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-3590 updated cvss 9.8

wordpress: WordPress is affected by an unauthenticated blind SSRF in the pingback feature.

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

3.43% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template WordPress <= 6.2 - Server Side Request Forgery nuclei detection template
  • wpscan.com https://wpscan.com/vulnerability/c8814e6e-78b3-4f63-a1d3-6906a84c1f11 referenced PoC, tagged "exploit" by a source, unverified
  • blog.sonarsource.com https://blog.sonarsource.com/wordpress-core-unauthenticated-blind-ssrf/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
OSV 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami wordpress
>=4.1.0, <4.1.1
>=4.2.0, <6.1.2
4.1.1
6.1.2
bitnami wordpress-multisite
>=4.1.0, <4.1.1
>=4.2.0, <6.1.2
4.1.1
6.1.2

Affected products

  • WordPress WordPress

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.