CVE-2011-2499Public exploitNetwork attack vector

Browser script execution via unsanitized parameters

Published Feb 12, 2020 · Updated Aug 6, 2024

Cross-site scripting in Mambo CMS 4.6.5 and earlier allows remote attackers to execute script in a user's browser through crafted URLs. Frontend task and backend menu, menutype, zorder, search, client, and section parameters enter HTML contexts without adequate sanitization. Execution requires a user to open the URL and occurs immediately for an existing session or after login, exposing data and actions available to that browser session.

CVSS severity6.1
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Mambo CMS 4.6.5 and earlier allows remote attackers to execute script in a user's browser through crafted URLs. Frontend task and backend menu, menutype, zorder, search, client, and section parameters enter HTML contexts without adequate sanitization. Execution requires a user to open the URL and occurs immediately for an existing session or after login, exposing data and actions available to that browser session.

The record

CVE
CVE-2011-2499
Published
Feb 12, 2020
Updated
Aug 6, 2024
Vendor
Mambo Foundation
Product
Mambo CMS
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 12, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=through 4.6.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Mambo Foundation · Mambo CMSversion=through 4.6.5

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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