CVE-2009-1070

ExpressionEngine 1.6.4-1.6.6 - Stored Cross-Site Scripting via Avatar Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-1070. PoCs published by Adam Baldwin.

AI-analyzed exploit summary This exploit demonstrates an HTML injection vulnerability in ExpressionEngine versions 1.6.4 through 1.6.6. The PoC shows how attacker-supplied HTML and script code can be executed in the context of the affected browser.

Description

Cross-site scripting (XSS) vulnerability in system/index.php in ExpressionEngine 1.6.4 through 1.6.6, and possibly earlier versions, allows remote attackers to inject arbitrary web script or HTML via the avatar parameter.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Adam Baldwin · textwebappsphp
https://www.exploit-db.com/exploits/32871

This exploit demonstrates an HTML injection vulnerability in ExpressionEngine versions 1.6.4 through 1.6.6. The PoC shows how attacker-supplied HTML and script code can be executed in the context of the affected browser.

Classification
Working Poc 90%
Attack Type
Xss
Complexity
Trivial
Reliability
Reliable
Target: ExpressionEngine 1.6.4 through 1.6.6
No auth needed
Prerequisites: Access to a vulnerable ExpressionEngine instance
MITRE ATT&CK
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/502045/100/0/threaded
Various Sources x_refsource_confirm
http://expressionengine.com/docs/changelog.html#v167
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/34379
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/49359
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/34193

Scores

EPSS 0.0172
EPSS Percentile 74.5%

Details

CWE
CWE-79
Status published
Products (3)
expressionengine/expressionengine 1.6.4
expressionengine/expressionengine 1.6.5
expressionengine/expressionengine 1.6.6
Published Mar 26, 2009
Tracked Since Feb 18, 2026