markdown-it < 1.3.2 — Uncontrolled Resource Consumption
CVE-2022-21670Published · Updated Action summary
Affected: 1.0.3 – 1.0.3Update to 1.1.0 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:NIntegrity- None
A:LAvailability- Low
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Block for Apple Maps maps-block-apple
- Affected1.0.3 – 1.0.3
- Patched in1.1.0
Update to 1.1.0 or newer.
You are affected if you run 1.0.3 – 1.0.3. Version 1.1.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Block for Apple Maps.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 1.1.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Block for Apple Maps to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence.
The package markdown-it 1.3.2 is vulnerable to Uncontrolled Resource Consumption in cases where special patterns with length greater than 50 thousand characters are used. As this package is used in some WordPress plugins, this could result in the impacted plugins being vulnerable.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Block for Apple Maps
All 6| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Remote Code Execution ≤1.1.0Update to 1.1.1 | CVE-2022-25860 | |
| High8.8 | Prototype Pollution ≤1.0.3Update to 1.1.0 | CVE-2022-46175 | |
| Critical9.8 | Remote Code Execution ≤4.4.0Update to 4.4.1 | CVE-2022-25912 | |
| Medium5.4 | Prototype Pollution ≤4.3.1Update to 4.4.0 | CVE-2022-37601 | |
| Medium5.3 | Regular Expression Denial of Service ≤1.0.3Update to 1.1.0 | — |
- High8.1Remote Code Execution
≤1.1.0Update to 1.1.1
- High8.8Prototype Pollution
≤1.0.3Update to 1.1.0
- Critical9.8Remote Code Execution
≤4.4.0Update to 4.4.1
- Medium5.4Prototype Pollution
≤4.3.1Update to 4.4.0
- Medium5.3Regular Expression Denial of Service
≤1.0.3Update to 1.1.0
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.