CVE-2011-4940: n/a vulnerability

CVE-2011-4940: The list_directory function in Lib/SimpleHTTPServer.py in SimpleHTTPServer in Python before 2.5.6c1, 2.6.x...

The list_directory function in Lib/SimpleHTTPServer.py in SimpleHTTPServer in Python before 2.5.6c1, 2.6.x before 2.6.7 rc2, and 2.7.x before 2.7.2 does not place a charset parameter in the Content-Type HTTP header, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks against Internet Explorer 7 via UTF-7 encoding.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:23 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects Python's old SimpleHTTPServer directory listing behavior. It omitted a charset in the HTTP response, allowing Internet Explorer 7 to interpret content as UTF-7 and enabling cross-site scripting in narrow conditions. Exposure is most likely in legacy Python 2 deployments using SimpleHTTPServer to serve directory listings, especially if reachable by untrusted users. Modern browsers and non-exposed development servers reduce practical risk. Treat as a legacy hygiene issue unless an affected SimpleHTTPServer instance is exposed to untrusted users. Prioritize remediation during legacy Python cleanup or external attack-surface reduction. Mitigation focus: Upgrade Python beyond the affected 2.5, 2.6, and 2.7 versions named in the CVE.; Apply vendor security updates from applicable Linux distribution advisories.; Remove public exposure of SimpleHTTPServer directory listings where possible..

Prepared: Jun 24, 2026, 12:34 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 27, 2012, 10:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=803500CVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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