CVE-2011-1150Public exploitNetwork attack vector

Reflected XSS via unsanitized login redirect

Published Feb 5, 2020 · Updated Aug 6, 2024

Reflected XSS in bbPress 1.0.2 and earlier allows remote attackers to execute script in a victim's browser through a crafted login URL. bb-login.php accepts the re redirect parameter without proper sanitization, allowing a data URL carrying script to survive processing. The login page runs the payload immediately for a logged-in victim or after a logged-out victim authenticates, exposing browser-accessible data or actions.

CVSS severity6.1
Medium
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in bbPress 1.0.2 and earlier allows remote attackers to execute script in a victim's browser through a crafted login URL. bb-login.php accepts the re redirect parameter without proper sanitization, allowing a data URL carrying script to survive processing. The login page runs the payload immediately for a logged-in victim or after a logged-out victim authenticates, exposing browser-accessible data or actions.

The record

CVE
CVE-2011-1150
Published
Feb 5, 2020
Updated
Aug 6, 2024
Vendor
John James Jacoby
Product
bbPress
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 5, 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 1.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

John James Jacoby · bbPressversion=through 1.0.2

Published CVSS scores

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

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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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