How severe is CVE-2011-4273?

CVE-2011-4273 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-4273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4273?

CVE-2011-4273 affects Goahead Goahead Webserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4273?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2011-4273 published?

CVE-2011-4273 was published on 2011-11-03 and last updated on 2026-06-16.

CVE-2011-4273

CVE-2011-4273 is a medium-severity vulnerability in Goahead Goahead Webserver with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Goahead Goahead Webserver
Published: 2011-11-03
Last modified: 2026-06-16

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.

Frequently asked questions

What is 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.
How severe is CVE-2011-4273?: CVE-2011-4273 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-4273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4273?: CVE-2011-4273 affects Goahead Goahead Webserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4273?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4273 published?: CVE-2011-4273 was published on 2011-11-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:goahead:goahead_webserver:2.1.8:*:*:*:*:*:*:*

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