WordPress plugin
WordPress Share Buttons Plugin – AddThis < 2.2.0 — Code Injection
c466c0ff-d84b-4536-bea7-ada2a80aad15Published · Updated Action summary
Affected: <2.2.0Update to 2.2.0 or newer
All remediation steps- Severity
- Critical9.8
- CVSS
- 9.8CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WordPress Share Buttons Plugin – AddThis addthis
- Affected< 2.2.0
- Patched in2.2.0
Update to 2.2.0 or newer.
You are affected if you run < 2.2.0. Version 2.2.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WordPress Share Buttons Plugin – AddThis.
- 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 2.2.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WordPress Share Buttons Plugin – AddThis to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence.
The WordPress Share Buttons Plugin – AddThis for WordPress is vulnerable to code injection in versions up to, and including, 2.1.3. This is due to a backdoor vulnerability. This makes it possible for attackers to execute arbitrary code via the plugin.
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 WordPress Share Buttons Plugin – AddThis
All 4| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.8 | Authenticated Cross-Site Scripting <5.0.13Update to 5.0.13 | CVE-2015-9439 | |
| Medium6.1 | Cross-Site Scripting <5.0.13Update to 5.0.13 | — | |
| Medium6.4 | Authenticated Stored Cross-Site Scripting <5.0.3Update to 5.0.3 | — |
- Medium4.8Authenticated Cross-Site Scripting
<5.0.13Update to 5.0.13
- Medium6.1Cross-Site Scripting
<5.0.13Update to 5.0.13
- Medium6.4Authenticated Stored Cross-Site Scripting
<5.0.3Update to 5.0.3
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- 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.