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Vulnerability record · CVE-2008-2020 · published 30 April 2008

CVE-2008-2020: E107 vulnerability

E107 · E107

The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (aka OpenDb) 1.5.0b4, and (8) Labgab 1.1 uses a code_bg.jpg background image and the PHP ImageString function in a way that produces an insufficient number of different images, which allows remote attackers to pass the CAPTCHA test via an automated attack using a table of all possible image checksums and their corresponding digit strings.

7.5 CVSS 3.1 High EPSS 1.7% · top 24.1% CWE-330 · CWE-330
7.5CVSS 3.1 base score, v2 6.8
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
10References
16 Jun 2026Last modified by NVD

Description

The CAPTCHA implementation as used in (1) Francisco Burzi PHP-Nuke 7.0 and 8.1, (2) my123tkShop e-Commerce-Suite (aka 123tkShop) 0.9.1, (3) phpMyBitTorrent 1.2.2, (4) TorrentFlux 2.3, (5) e107 0.7.11, (6) WebZE 0.5.9, (7) Open Media Collectors Database (aka OpenDb) 1.5.0b4, and (8) Labgab 1.1 uses a code_bg.jpg background image and the PHP ImageString function in a way that produces an insufficient number of different images, which allows remote attackers to pass the CAPTCHA test via an automated attack using a table of all possible image checksums and their corresponding digit strings.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://securityreason.com/securityalert/3834 Broken Link
http://www.rooksecurity.com/blog/?p=6 Broken Link
http://www.securityfocus.com/archive/1/491127/100/0/threaded Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/28877 Broken LinkThird Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/42152 Third Party AdvisoryVDB Entry
http://securityreason.com/securityalert/3834 Broken Link
http://www.rooksecurity.com/blog/?p=6 Broken Link
http://www.securityfocus.com/archive/1/491127/100/0/threaded Broken LinkThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/28877 Broken LinkThird Party AdvisoryVDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/42152 Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2008-1989123flashchat 123 flash chat module code injection vulnerabilityPHP remote file inclusion vulnerability in 123flashchat.php in the 123 Flash Chat 6.8.0 module for e107, when register_globals is enabled, allows rem…EPSS 3.6%8.8CVE-2021-27885E107 cross-site request forgery vulnerabilityusersettings.php in e107 through 2.3.0 lacks a certain e_TOKEN protection mechanism.EPSS 3.2%8.8CVE-2016-10753E107 deserialization of untrusted data vulnerabilitye107 2.1.2 allows PHP Object Injection with resultant SQL injection, because usersettings.php uses unserialize without an HMAC.EPSS 1.7%8.8CVE-2018-15901E107 cross-site request forgery vulnerabilitye107 2.1.8 has CSRF in 'usersettings.php' with an impact of changing details such as passwords of users including administrators.EPSS 0.56%8.8CVE-2008-3938Opendb cross-site request forgery vulnerabilityCross-site request forgery (CSRF) vulnerability in user_admin.php in Open Media Collectors Database (OpenDb) 1.0.6 allows remote attackers to change …EPSS 0.46%8.7CVE-2022-50916E107 unrestricted file upload vulnerabilitye107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrators to override server files through the Media Manag…EPSS 0.93%8.6CVE-2022-50939E107 path traversal vulnerabilitye107 CMS version 3.2.1 contains a critical file upload vulnerability that allows authenticated administrators to override arbitrary server files thro…EPSS 1.3%8.6CVE-2022-50907E107 unrestricted file upload vulnerabilitye107 CMS version 3.2.1 contains a file upload vulnerability that allows authenticated administrative users to bypass upload restrictions and execute …EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2008-2020), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.