CVE-2009-4408 — Multiple cross-site scripting (XSS) vulnerabilities in models.parser in PyForum 1.0.3 and possibly earlier versions, and possibly zForum, allow remote attackers to inject arbitrary web script or HTML via crafted BBcode (1) img or (2) url tags, which are not properly handled when a post is viewed

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MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in models.parser in PyForum 1.0.3 and possibly earlier versions, and possibly zForum, allow remote attackers to inject arbitrary web script or HTML via crafted BBcode (1) img or (2) url tags, which are not properly handled when a post is viewed

Published Dec 23, 2009

4.3

MEDIUM

CVSS 2.0

EPSS 1.03%

Description

Multiple cross-site scripting (XSS) vulnerabilities in models.parser in PyForum 1.0.3 and possibly earlier versions, and possibly zForum, allow remote attackers to inject arbitrary web script or HTML via crafted BBcode (1) img or (2) url tags, which are not properly handled when a post is viewed.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.03% 0.01033

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.01033

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	1.03% (0.01033)	62.52th	v5 (v2026.06.15)
Jun 15, 2026	1.03% (0.01033)	59.18th	v5 (v2026.06.15)
Mar 17, 2025	0.29% (0.00285)	49.95th	v4 (v2025.03.14)
Dec 12, 2024	0.22% (0.00220)	61.06th	v3 (v2023.03.01)
Jun 18, 2024	0.22% (0.00220)	60.29th	v3 (v2023.03.01)
Mar 7, 2023	0.22% (0.00220)	58.29th	v3 (v2023.03.01)
Mar 6, 2023	1.21% (0.01213)	66.61th	v2 (v2022.01.01)
Feb 17, 2023	1.21% (0.01213)	66.22th	v2 (v2022.01.01)
Apr 1, 2022	1.21% (0.01213)	64.21th	v2 (v2022.01.01)
Feb 4, 2022	1.21% (0.01213)	40.54th	v2 (v2022.01.01)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (4)

http://secunia.com/advisories/37764
third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.osvdb.org/61051
vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/archive/1/508478/100/0/threaded
mailing-listx_refsource_BUGTRAQ
https://exchange.xforce.ibmcloud.com/vulnerabilities/54855
vdb-entryx_refsource_XF

Link	Providers	Tags
http://secunia.com/advisories/37764		third-party-advisoryx_refsource_SECUNIAVendor Advisory
http://www.osvdb.org/61051		vdb-entryx_refsource_OSVDB
http://www.securityfocus.com/archive/1/508478/100/0/threaded		mailing-listx_refsource_BUGTRAQ
https://exchange.xforce.ibmcloud.com/vulnerabilities/54855		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Dec 23, 2009

Updated Aug 7, 2024

Reserved Dec 23, 2009

Link CVE-2009-4408

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2009-4408

Red Hat

Severity n/a

Public date n/a

Links CVE-2009-4408