CVE-2009-3265 — Cross-site scripting (XSS) vulnerability in Opera 9 and 10 allows remote attackers to inject arbitrary web script or HTML via a (1) RSS or (2) Atom feed, related to the rendering of the application/rss+xml content type as "scripted content." NOTE: the vendor reportedly considers this behavior a "design feature," not a vulnerability

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MEDIUM

Cross-site scripting (XSS) vulnerability in Opera 9 and 10 allows remote attackers to inject arbitrary web script or HTML via a (1) RSS or (2) Atom feed, related to the rendering of the application/rss+xml content type as "scripted content." NOTE: the vendor reportedly considers this behavior a "design feature," not a vulnerability

Published Sep 18, 2009

4.3

MEDIUM

CVSS 2.0

EPSS 1.68%

Description

Cross-site scripting (XSS) vulnerability in Opera 9 and 10 allows remote attackers to inject arbitrary web script or HTML via a (1) RSS or (2) Atom feed, related to the rendering of the application/rss+xml content type as "scripted content." NOTE: the vendor reportedly considers this behavior a "design feature," not a vulnerability.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.68% 0.01683

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01683

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 2, 2026	1.68% (0.01683)	76.17th	v5 (v2026.06.15)
Jun 15, 2026	1.68% (0.01683)	73.91th	v5 (v2026.06.15)
Mar 17, 2025	0.22% (0.00225)	43.11th	v4 (v2025.03.14)
Dec 12, 2024	0.19% (0.00191)	57.92th	v3 (v2023.03.01)
Jul 13, 2024	0.19% (0.00191)	56.93th	v3 (v2023.03.01)
Mar 7, 2023	0.19% (0.00191)	54.90th	v3 (v2023.03.01)
Mar 6, 2023	1.14% (0.01136)	59.45th	v2 (v2022.01.01)
Oct 18, 2022	1.14% (0.01136)	58.28th	v2 (v2022.01.01)
Apr 1, 2022	1.14% (0.01136)	56.27th	v2 (v2022.01.01)
Feb 4, 2022	1.14% (0.01136)	34.23th	v2 (v2022.01.01)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (3)

http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/
x_refsource_MISC
http://www.securityfocus.com/archive/1/506517/100/0/threaded
mailing-listx_refsource_BUGTRAQ
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6370
vdb-entrysignaturex_refsource_OVAL

Link	Providers	Tags
http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/		x_refsource_MISC
http://www.securityfocus.com/archive/1/506517/100/0/threaded		mailing-listx_refsource_BUGTRAQ
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6370		vdb-entrysignaturex_refsource_OVAL

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Sep 18, 2009

Updated Aug 7, 2024

Reserved Sep 18, 2009

Link CVE-2009-3265

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2009-3265

Red Hat

Severity n/a

Public date n/a

Links CVE-2009-3265