CVE-2013-5705

Exp

apache2/modsecurity.c in ModSecurity before 2.7.6 allows remote attackers to bypass rules by using chunked transfer coding with a capitalized Chunked value in the Transfer-Encoding HTTP header.

Published: 2014-04-15 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-5705 is rated Exploit Available (59.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.84%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2013-5705

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-5705

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.33% 0.84% -0.49%
2 2025-03-29 0.84% 1.33% +0.49%
3 2025-03-17 — 0.84% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-5705

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-5705

OS Trackers for CVE-2013-5705

vendor priority summary link
debian not yet assigned CVE-2013-5705 not yet assigned priority: Debian including 1 source packages (modsecurity-apache), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-5705
redhat medium — https://access.redhat.com/security/cve/CVE-2013-5705
ubuntu medium CVE-2013-5705 medium priority: Ubuntu including 2 source packages (libapache-mod-security, modsecurity-apache), 24 status rows across 12 suites (lucid, precise, quantal, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 11, not-affected 7, ignored 4, released 2. https://ubuntu.com/security/CVE-2013-5705

Affected software / configurations for CVE-2013-5705

Vendor Product Version Raw CPE
trustwave modsecurity < 2.7.6 cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

References for CVE-2013-5705

cvelogic Threat Intelligence