CVE-2011-4273 — Multiple cross-site scripting (XSS) vulnerabilities in GoAhead Webserver 2.18 allow remote attackers to inject arbitrary web script or HTML via (1) the group parameter to goform/AddGroup, related to addgroup.asp; (2) the url parameter to goform/AddAccessLimit, related to addlimit.asp; or the (3) user (aka User ID) or (4) group parameter to goform/AddUser, related to adduser.asp

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MEDIUM

Multiple cross-site scripting (XSS) vulnerabilities in GoAhead Webserver 2.18 allow remote attackers to inject arbitrary web script or HTML via (1) the group parameter to goform/AddGroup, related to addgroup.asp; (2) the url parameter to goform/AddAccessLimit, related to addlimit.asp; or the (3) user (aka User ID) or (4) group parameter to goform/AddUser, related to adduser.asp

Published Nov 3, 2011

4.3

MEDIUM

CVSS 2.0

EPSS 4.77%

Description

Multiple cross-site scripting (XSS) vulnerabilities in GoAhead Webserver 2.18 allow remote attackers to inject arbitrary web script or HTML via (1) the group parameter to goform/AddGroup, related to addgroup.asp; (2) the url parameter to goform/AddAccessLimit, related to addlimit.asp; or the (3) user (aka User ID) or (4) group parameter to goform/AddUser, related to adduser.asp.

Affected products

Remediation

No remediation recorded yet.

Metrics

4.77% 0.04772

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

EPSS probability 0.04772

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 (15 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	4.77% (0.04772)	91.63th	v5 (v2026.06.15)
Jun 15, 2026	5.05% (0.05048)	91.17th	v5 (v2026.06.15)
Sep 1, 2025	1.23% (0.01228)	78.44th	v4 (v2025.03.14)
Mar 17, 2025	2.55% (0.02548)	84.44th	v4 (v2025.03.14)
Dec 12, 2024	0.32% (0.00319)	71.36th	v3 (v2023.03.01)
May 3, 2024	0.32% (0.00324)	70.55th	v3 (v2023.03.01)
Mar 11, 2024	0.42% (0.00416)	73.55th	v3 (v2023.03.01)
Feb 8, 2024	0.31% (0.00311)	69.27th	v3 (v2023.03.01)
Jan 16, 2024	0.31% (0.00311)	66.90th	v3 (v2023.03.01)
Nov 22, 2023	0.40% (0.00405)	70.86th	v3 (v2023.03.01)
Sep 29, 2023	0.38% (0.00380)	69.77th	v3 (v2023.03.01)
Mar 7, 2023	0.35% (0.00354)	67.54th	v3 (v2023.03.01)
Mar 6, 2023	1.92% (0.01917)	78.00th	v2 (v2022.01.01)
Apr 1, 2022	1.92% (0.01917)	76.01th	v2 (v2022.01.01)
Feb 4, 2022	1.92% (0.01917)	55.17th	v2 (v2022.01.01)

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (3)

http://secunia.com/advisories/46894
third-party-advisoryx_refsource_SECUNIA
http://www.kb.cert.org/vuls/id/384427
third-party-advisoryx_refsource_CERT-VNExploitUS Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/70434
vdb-entryx_refsource_XF

Link	Providers	Tags
http://secunia.com/advisories/46894		third-party-advisoryx_refsource_SECUNIA
http://www.kb.cert.org/vuls/id/384427		third-party-advisoryx_refsource_CERT-VNExploitUS Government Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/70434		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-2011-4273

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-4273

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-4273