HOMEVULNERABILITIESCVE-2012-3382
MEDIUM

CVE-2012-3382

CWE-79Published: July 12, 2012· Updated: Jun 16, 2026

4.3
CVSS v3.1

Official Description

Cross-site scripting (XSS) vulnerability in the ProcessRequest function in mcs/class/System.Web/System.Web/HttpForbiddenHandler.cs in Mono 2.10.8 and earlier allows remote attackers to inject arbitrary web script or HTML via a file with a crafted name and a forbidden extension, which is not properly handled in an error message.

NVD Source

Technical Analysis

CVE-2012-3382 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityP
AvailabilityNone
AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected Vendors & Products

mono1 product(s)
mono
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/mono/mono/commit/d16d4623edb210635bec3ca3786481b82cde25a2
PATCHhttps://github.com/mono/mono/commit/d16d4623edb210635bec3ca3786481b82cde25a2

All References (10)

→
http://www.mandriva.com/security/advisories?name=MDVSA-2012:140
→
http://www.openwall.com/lists/oss-security/2012/07/06/11
→
https://bugzilla.novell.com/show_bug.cgi?id=769799
→
https://github.com/mono/mono/commit/d16d4623edb210635bec3ca3786481b82cde25a2Exploit · Patch
→
https://hermes.opensuse.org/messages/15374367
→
http://www.mandriva.com/security/advisories?name=MDVSA-2012:140
→
http://www.openwall.com/lists/oss-security/2012/07/06/11
→
https://bugzilla.novell.com/show_bug.cgi?id=769799
→
https://github.com/mono/mono/commit/d16d4623edb210635bec3ca3786481b82cde25a2Exploit · Patch
→
https://hermes.opensuse.org/messages/15374367

Quick Facts

CVE IDCVE-2012-3382
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-79
CISA KEVNo
Affected1 vendor(s)
PublishedJul 12, 2012

Related CVEs (CWE-79)

CVE-2025-49410
10.0
CVE-2024-6886
10.0
CVE-2023-0776
10.0
CVE-2011-3046
10.0
CVE-2021-32671
10.0
CVE-2026-54433
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2012-3382 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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