CVE-2021-32707 (GCVE-0-2021-32707)
Vulnerability from cvelistv5
Published
2021-07-12 19:05
Modified
2024-08-03 23:25
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-20 - Improper Input Validation
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
Nextcloud Mail is a mail app for Nextcloud. In versions prior to 1.9.6, the Nextcloud Mail application does not, by default, render images in emails to not leak the read state. The privacy filter failed to filter images with a `background-image` CSS attribute. Note that the images were still passed through the Nextcloud image proxy, and thus there was no IP leakage. The issue was patched in version 1.9.6 and 1.10.0. No workarounds are known to exist.
References
Impacted products
Vendor Product Version
nextcloud security-advisories Version: < 1.9.6
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