TimThumb <= 1.33 — Remote File Download
CVE-2011-4106Published · Updated Action summary
TimThumb: Affected: <2.0Update to 2.0 or newer
Category List Portfolio Page: Affected: all versionsNo patch available
Simple Post Thumbnails: Affected: all versionsNo patch available
What to do until a fix ships- 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?
TimThumb timthumb
- Affected< 2.0
- Patched in2.0
Update to 2.0 or newer.
You are affected if you run < 2.0. Version 2.0 and later are not affected by this issue.
Category List Portfolio Page category-list-portfolio-page
- Affectedall versions
- PatchedNo fix yet
No patched version available.
You are affected if you run all versions. No fixed version has been released.
Simple Post Thumbnails simple-post-thumbnails
- Affectedall versions
- PatchedNo fix yet
No patched version available.
You are affected if you run all versions. No fixed version has been released.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under TimThumb.
- 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 2.0, or a newer patched version
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch TimThumb to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Mark Maunder.
TimThumb (timthumb.php) before 2.0 does not validate the entire source with the domain white list, which allows remote attackers to upload and execute arbitrary code via a URL containing a white-listed domain in the src parameter, then accessing it via a direct request to the file in the cache directory, as exploited in the wild in August 2011. Note: this is not a WordPress plugin or theme, but may be used by WordPress plugins and themes. Make sure to check for the presence of the timthumb.php file when determining if your installation is 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 TimThumb
All 2| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Critical9.8 | Remote Code Execution ≤1.4.12No patch available | — |
- Critical9.8Remote Code Execution
≤1.4.12No patch available
Timeline
CVE published
Severity critical, CVSS 9.8
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. 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.