CVE-2016-7966: n/a vulnerability

CVE-2016-7966: Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's pla...

Through a malicious URL that contained a quote character it was possible to inject HTML code in KMail's plaintext viewer. Due to the parser used on the URL it was not possible to include the equal sign (=) or a space into the injected HTML, which greatly reduces the available HTML functionality. Although it is possible to include an HTML comment indicator to hide content.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 02:13 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-7966 affects KMail's plaintext email viewer. A maliciously crafted URL could cause injected HTML to appear in a message that should be displayed as plain text. The known parser limits reduce what injected HTML can do, but the issue could still mislead users by changing or hiding displayed content. Exposure is most relevant to organizations with users running affected KMail or KDE PIM packages from the 2016 timeframe. The bundle does not provide exact upstream affected versions or CPEs. Debian, Fedora, and openSUSE advisories indicate distribution-packaged fixes or updates existed. Treat this as a legacy client-side email risk. It is not documented as actively exploited in the provided sources, but unpatched mail clients can support phishing and content deception. Remediate through package updates or retirement of unsupported desktops. Mitigation focus: Apply relevant KMail or KDE PIM updates from the operating system vendor.; Prioritize Debian, Fedora, and openSUSE systems referenced by the advisories.; If versions are unclear, check vendor security guidance for CVE-2016-7966..

Prepared: Jun 13, 2026, 12:51 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: Dec 23, 2016, 22:00 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
FEDORA-2016-92c112a380CVE reference · vendor-advisory, x_refsource_FEDORA

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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