HOMEVULNERABILITIESCVE-2008-2020
HIGH

CVE-2008-2020

CWE-330Published: April 30, 2008· Updated: Jun 16, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2008-2020 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

e1071 product(s)
e107
labgab1 product(s)
labgab
my123tkshop1 product(s)
e-commerce-suite
opendb1 product(s)
opendb
phpmybittorrent1 product(s)
phpmybittorrent
phpnuke1 product(s)
php-nuke
torrentflux_project1 product(s)
torrentflux
webze1 product(s)
webze
Source: NVD CPE · 9 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://www.securityfocus.com/archive/1/491127/100/0/threaded
ADVISORYhttp://www.securityfocus.com/bid/28877
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/42152
ADVISORYhttp://www.securityfocus.com/archive/1/491127/100/0/threaded
ADVISORYhttp://www.securityfocus.com/bid/28877
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/42152

All References (10)

→
http://securityreason.com/securityalert/3834Broken Link
→
http://www.rooksecurity.com/blog/?p=6Broken Link
→
http://www.securityfocus.com/archive/1/491127/100/0/threadedBroken Link · Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/28877Broken Link · Third Party Advisory · VDB Entry
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/42152Third Party Advisory · VDB Entry
→
http://securityreason.com/securityalert/3834Broken Link
→
http://www.rooksecurity.com/blog/?p=6Broken Link
→
http://www.securityfocus.com/archive/1/491127/100/0/threadedBroken Link · Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/28877Broken Link · Third Party Advisory · VDB Entry
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/42152Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2008-2020
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-330
CISA KEVNo
Affected8 vendor(s)
PublishedApr 30, 2008

Related CVEs (CWE-330)

CVE-2026-25072
9.8
CVE-2021-36166
9.8
CVE-2020-27630
9.8
CVE-2023-46740
9.8
CVE-2020-27631
9.8
CVE-2008-3612
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2008-2020 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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