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Vulnerability record · CVE-2009-4090 · published 29 November 2009

CVE-2009-4090: Telepark.wiki improper input validation vulnerability

Telepark · Telepark.Wiki

Unrestricted file upload vulnerability in ajax/addComment.php in telepark.wiki 2.4.23 and earlier script allows remote attackers to execute arbitrary code by uploading a file with a name containing a NULL byte.

7.5 CVSS 2.0 High EPSS 3.2% · top 12.3% CWE-20 · Improper input validation
7.5CVSS 2.0 base score
3.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Unrestricted file upload vulnerability in ajax/addComment.php in telepark.wiki 2.4.23 and earlier script allows remote attackers to execute arbitrary code by uploading a file with a name containing a NULL byte.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

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

References

LinkTags
http://blog.telepark.com/telepark-web-software/2009/11/09/telepark-wiki-security-fixes/ Patch
http://packetstormsecurity.org/0911-exploits/Telepark-fixes-nov09-2.txt Exploit
http://secunia.com/advisories/37391 ExploitVendor Advisory
http://www.osvdb.org/60219
https://exchange.xforce.ibmcloud.com/vulnerabilities/54294
http://blog.telepark.com/telepark-web-software/2009/11/09/telepark-wiki-security-fixes/ Patch
http://packetstormsecurity.org/0911-exploits/Telepark-fixes-nov09-2.txt Exploit
http://secunia.com/advisories/37391 ExploitVendor Advisory
http://www.osvdb.org/60219
https://exchange.xforce.ibmcloud.com/vulnerabilities/54294

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2009-4090), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.