How severe is CVE-2008-2020?

CVE-2008-2020 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2008-2020 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-2020?

CVE-2008-2020 primarily affects E107. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-2020?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-2020 published?

CVE-2008-2020 was published on 2008-04-30 and last updated on 2026-06-16.

CVE-2008-2020

CVE-2008-2020 is a high-severity vulnerability in E107 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-330.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 6.8
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-330
Affected product: E107
Published: 2008-04-30
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2008-2020?: 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.
How severe is CVE-2008-2020?: CVE-2008-2020 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2008-2020 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-2020?: CVE-2008-2020 primarily affects E107. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2008-2020?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-2020 published?: CVE-2008-2020 was published on 2008-04-30 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:e107:e107:0.7.11:*:*:*:*:*:*:*
cpe:2.3:a:labgab:labgab:1.1:*:*:*:*:*:*:*
cpe:2.3:a:my123tkshop:e-commerce-suite:0.9.1:*:*:*:*:*:*:*
cpe:2.3:a:opendb:opendb:1.5.0:beta4:*:*:*:*:*:*
cpe:2.3:a:phpmybittorrent:phpmybittorrent:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:phpnuke:php-nuke:7.0:*:*:*:*:*:*:*
cpe:2.3:a:phpnuke:php-nuke:8.1:*:*:*:*:*:*:*
cpe:2.3:a:torrentflux_project:torrentflux:2.3:*:*:*:*:*:*:*
cpe:2.3:a:webze:webze:0.5.9:*:*:*:*:*:*:*

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