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ExploitedNot in CISA KEV yet

CVE-2022-1390

Exploitation confirmed. First attested on 2023-10-14 by GCVE · kevintel, GCVE · shadowserver.

  • Published2022-04-25
  • WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The Admin Word Count Column WordPress plugin through 2.2 does not validate the path parameter given to readfile(), which could allow unauthenticated attackers to read arbitrary files on server running old version of PHP susceptible to the null byte technique. This could also lead to RCE by using a Phar Deserialization technique

Timeline

dates in UTC
  1. 2022-04-2516:16CVE publishedNVD
  2. 2023-10-1418:25Listed as exploited by GCVEGCVE
  3. 2023-10-1418:25Exploitation first reportedGCVE

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-1390?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-1390?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Admin word count column project admin word count column
BranchAffectedFixed in
2.2≤ 2.2no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-11-02 22:42 UTC
Nuclei template
available
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • GCVEexploitation2023-10-14
  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • CNAweakness (CWE)CWE-22known since 2026-10-23
  • FIRST EPSSEPSS score21.9 %read 2026-11-02
  • ProjectDiscoverydetectionread 2026-11-02

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2022-04-25
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2022-1390?

The Admin Word Count Column WordPress plugin through 2.2 does not validate the path parameter given to readfile(), which could allow unauthenticated attackers to read arbitrary files on server running old version of PHP susceptible to the null byte technique. This could also lead to RCE by using a Phar Deserialization technique

Is CVE-2022-1390 actively exploited?

Active exploitation of CVE-2022-1390 has not been confirmed. Its EPSS score was 21.9% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-1390?

CVE-2022-1390 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record