Interpretation conflict in ModSecurity (mod_security) 2.1.0 and earlier allows remote attackers to bypass request rules via application/x-www-form-urlencoded POST data that contains an ASCIIZ (0x00) byte, which mod_security treats as a terminator even though it is still processed as normal data by some HTTP parsers including PHP 5.2.0, and possibly parsers in Perl, and Python.
CVE-2007-1359
- No confirmed exploitation signals yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 93.1%
- KEV
- Not listed
Published
March 8, 2007
Last Modified
April 23, 2026
References (30)
- cve@mitrehttp://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00727143
- cve@mitrehttp://secunia.com/advisories/24373
- cve@mitrehttp://secunia.com/advisories/25316
- cve@mitrehttp://secunia.com/advisories/31087
- cve@mitrehttp://secunia.com/advisories/31113
- cve@mitrehttp://www.gentoo.org/security/en/glsa/glsa-200705-17.xml
- cve@mitrehttp://www.modsecurity.org/blog/archives/2007/03/modsecurity_asc.html
- cve@mitrehttp://www.oracle.com/technetwork/topics/security/cpujul2008-090335.html
- cve@mitrehttp://www.osvdb.org/32778
- cve@mitrehttp://www.php-security.org/MOPB/BONUS-12-2007.html
- cve@mitrehttp://www.securityfocus.com/bid/22831
- cve@mitrehttp://www.vupen.com/english/advisories/2007/0868
- cve@mitrehttp://www.vupen.com/english/advisories/2008/2109/references
- cve@mitrehttp://www.vupen.com/english/advisories/2008/2115
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/32872
Data Freshness Timeline
(refreshed 4× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-13 22:25 UTCEPSS rescore
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- 2026-05-31 03:51 UTCEG score recompute
- 2026-05-31 03:50 UTCGHSA enrichment
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Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-3425✓ verifiedFirst seen Mar 7, 2007
mod_security 2.1.0 - ASCIIZ byte POST Rules Bypass
Open source ↗
Frequently asked(4)
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