CVE-2011-4274 — Cross-site scripting (XSS) vulnerability in the A-Form PC and PC/Mobile before 3.1 plug-ins for Movable Type allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-2676

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MEDIUM

Cross-site scripting (XSS) vulnerability in the A-Form PC and PC/Mobile before 3.1 plug-ins for Movable Type allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-2676

Published Nov 3, 2011

4.3

MEDIUM

CVSS 2.0

EPSS 1.04%

Description

Cross-site scripting (XSS) vulnerability in the A-Form PC and PC/Mobile before 3.1 plug-ins for Movable Type allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-2676.

Affected products

Remediation

No remediation recorded yet.

Metrics

1.04% 0.01042

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

EPSS probability 0.01042

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	1.04% (0.01042)	62.77th	v5 (v2026.06.15)
Jun 15, 2026	1.14% (0.01135)	62.22th	v5 (v2026.06.15)
Mar 17, 2025	0.25% (0.00254)	46.85th	v4 (v2025.03.14)
Dec 12, 2024	0.19% (0.00192)	58.12th	v3 (v2023.03.01)
Jan 24, 2024	0.19% (0.00192)	57.18th	v3 (v2023.03.01)
Mar 7, 2023	0.19% (0.00192)	55.17th	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://www.ark-web.jp/movabletype/a-form/docs/security_patch.html
x_refsource_CONFIRMPatch
http://www.ark-web.jp/movabletype/blog/2011/09/aform_update110927.html
x_refsource_CONFIRMPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/70405
vdb-entryx_refsource_XF

Link	Providers	Tags
http://www.ark-web.jp/movabletype/a-form/docs/security_patch.html		x_refsource_CONFIRMPatch
http://www.ark-web.jp/movabletype/blog/2011/09/aform_update110927.html		x_refsource_CONFIRMPatch
https://exchange.xforce.ibmcloud.com/vulnerabilities/70405		vdb-entryx_refsource_XF

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Nov 3, 2011

Updated Aug 7, 2024

Reserved Nov 2, 2011

Link CVE-2011-4274

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-4274

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-4274