CVE-2023-23598: mozilla firefox
Vulnerability summary
CVE-2023-23598 is a medium (CVSS 6.5) vulnerability in mozilla firefox. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 49.6% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 32 · Related 10Timeline
- 02-06-2023PublishedVulnerability first disclosed.
- 18-12-2025Last modifiedVulnerability information updated.
Description
Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain MIMEs containing file URLs as being dragged a website could arbitrarily read a file via a call to `DataTransfer.setData`. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.64%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
0.00 pp
From 0.64% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu7 products
- firefox< 109.0+build2-0ubuntu0.18.04.1 | < 109.0+build2-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 109 | < 109.0
- firefox_esr≥ unspecified, < 102.7 | < 102.7
- thunderbird≥ unspecified, < 102.7 | < 102.7
Debian2 products
- firefox-esr< 102.7.0esr-1
- thunderbird< 1:102.7.1-1
3 vendors · 12 products
References
11 links- www.mozilla.org/security/advisories/mfsa2023-01/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-02/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-03/Vendor Advisory
