Is CVE-2008-2020 in the CISA KEV catalog?

No. CVE-2008-2020 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-2020?

CVE-2008-2020 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2008-2020?

CVE-2008-2020 has an EPSS score of 1.67% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2008-2020?

No published fix for CVE-2008-2020 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2008-2020

HIGHEPSS 74th pctl

7.5

CVSS v3

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.

CWE-330

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

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

Exploit Intelligence

1.67%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Third-Party Advisory3

Other references2

Related Vulnerabilities

Other CWE-330 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-5420	Critical	9.8	92%	-	Fix
CVE-2021-34646	Critical	9.8	51%	-	-
CVE-2008-0087	High	7.5	32%	-	-
CVE-2017-6026	Critical	9.1	32%	-	-
CVE-2018-17888	Critical	9.8	30%	-	-
CVE-2020-11901	Critical	9.0	21%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.