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Terser < 4.8.1 and 5.0.0-5.14.1 — Regular Expression Denial of Service

d535c069-cfa3-4c41-9a01-b4c4e7c75764Published · Updated

Action summary

Block for Apple Maps: Affected: ≤1.0.3Update to 1.1.0 or newer

Retro Winamp Block: Affected: ≤1.1.0Update to 1.2.0 or newer

Autopost for X (formerly Autoshare for Twitter): Affected: ≤1.1.2Update to 1.2.0 or newer

Publisher Media Kit: Affected: ≤1.2.1Update to 1.3.0 or newer

All remediation steps
Watch plugin
Severity
Medium5.3
CVSS
5.3
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:N Confidentiality
None
I:N Integrity
None
A:L Availability
Low
Weakness
CWE-1333 Inefficient Regular Expression Complexity
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

  1. Affected≤ 1.0.3
  2. Patched in1.1.0

Update to 1.1.0 or newer.

You are affected if you run ≤ 1.0.3. Version 1.1.0 and later are not affected by this issue.

Retro Winamp Block retro-winamp-block

  1. Affected≤ 1.1.0
  2. Patched in1.2.0

Update to 1.2.0 or newer.

You are affected if you run ≤ 1.1.0. Version 1.2.0 and later are not affected by this issue.

Autopost for X (formerly Autoshare for Twitter) autoshare-for-twitter

  1. Affected≤ 1.1.2
  2. Patched in1.2.0

Update to 1.2.0 or newer.

You are affected if you run ≤ 1.1.2. Version 1.2.0 and later are not affected by this issue.

Publisher Media Kit publisher-media-kit

  1. Affected≤ 1.2.1
  2. Patched in1.3.0

Update to 1.3.0 or newer.

You are affected if you run ≤ 1.2.1. Version 1.3.0 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

  1. Update to version 1.1.0, or a newer patched version
  2. Update to version 1.2.0, or a newer patched version
  3. Update to version 1.2.0, or a newer patched version
  4. Update to version 1.3.0, or a newer patched version
  5. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  6. Watch Block for Apple Maps to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The package terser before 4.8.1, from 5.0.0 and before 5.14.2 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure usage of regular expressions. 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

More in Block for Apple Maps

All 6
More vulnerabilities in Block for Apple Maps
SeverityVulnerabilityCVEPublished
High8.1Remote Code Execution
≤1.1.0Update to 1.1.1
CVE-2022-25860
High8.8Prototype Pollution
≤1.0.3Update to 1.1.0
CVE-2022-46175
Critical9.8Remote Code Execution
≤4.4.0Update to 4.4.1
CVE-2022-25912
Medium5.4Prototype Pollution
≤4.3.1Update to 4.4.0
CVE-2022-37601
Medium5.3Uncontrolled Resource Consumption
1.0.3 – 1.0.3Update to 1.1.0
CVE-2022-21670

Timeline

  1. CVE published

    Severity medium, CVSS 5.3

  2. Record last updated

Sources & licenses

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.

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