CVE-2008-5185

What it is

The highlighting functionality in geshi.php in GeSHi before 1.0.8 allows remote attackers to cause a denial of service (infinite loop) via an XML sequence containing an opening delimiter without a closing delimiter, as demonstrated using "<".

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

3.9% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2008-11-21 02:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 22:59 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 3.9% in the next 30 days (EPSS).
• Severity: 5.0 MEDIUM (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2008-11-21 02:30 UTC

Last modified

2026-06-16 22:59 UTC

Exploit probability

3.9% · EPSS, next 30 days

Weakness

CWE-399

Record status

Modified

Affected

• Geshi ≤ 1.0.7.22
• Geshi 1.0.0
• Geshi 1.0.1
• Geshi 1.0.2
• Geshi 1.0.2_beta_1
• Geshi 1.0.3
• Geshi 1.0.4
• Geshi 1.0.5

Attack profile CVSS 2.0 · 5.0

Attack vector

Network

Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

Is it in your code?

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