RSS feed could redirect its subscription to a local file or network share
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Mozilla Thunderbird's RSS feed handling is affected, allowing a malicious or tampered feed to make the email client read local files and, on Windows, connect to an attacker's network share, potentially exposing the user's NTLM credentials.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A remote RSS feed could use the itunes:new-feed-url or newLocation element to permanently change its stored subscription URL to a file: URL. Thunderbird then read that location on every feed update. This allowed a malicious feed, or an attacker able to modify a feed delivered over HTTP, to make Thunderbird read local files and, on Windows, connect to an attacker-controlled network share, which could leak the user's NTLM credentials. The NTLM credential leak only affects Thunderbird on Windows. Other operating systems are affected by the local file read only. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6.
Timeline
- CVE published
- First seen by cve.now
- Record last updated
Affected versions
- Mozilla Thunderbird
Version range not reported