It is possible to execute JavaScript in the parsed RSS feed when RSS feed is viewed as a website, e.g. via "View -> Feed article ->…

Description

It is possible to execute JavaScript in the parsed RSS feed when RSS feed is viewed as a website, e.g. via "View -> Feed article -> Website" or in the standard format of "View -> Feed article -> default format". This vulnerability affects Thunderbird < 52.5.2.

Scores

EPSS (exploitation in 30 days)

1.9% · top 20% of all CVEs (3 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Weakness

• JavaScript Execution via RSS in mailbox:// origin
• CWE-74 (opens in a new tab)Other CVEs with CWE-74

Affected products

• Mozilla · Thunderbird

  • affected unspecified – < 52.5.2

References (7)

• [debian-lts-announce] 20171227 [SECURITY] [DLA 1223-1] thunderbird security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=1411716 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 102258 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• 1040123 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://www.mozilla.org/security/advisories/mfsa2017-30/ (opens in a new tab)x_refsource_CONFIRMx_transferred
• DSA-4075 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• RHSA-2018:0061 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2017-7846](https://trackcve.app/badge/CVE-2017-7846.svg)](https://trackcve.app/cve/CVE-2017-7846)

Record last updated 5 Aug 2024, 16:19 UTC.