An XSS issue was found in the Shares feature of LiquidFiles before 3.3.19.

published 2020-11-25 5y ago modified 2026-06-17 4mo ago also EUVD-2020-21453

cvss: 9.0; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.7%; EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

An XSS issue was found in the Shares feature of LiquidFiles before 3.3.19. The issue arises from the insecure rendering of HTML files uploaded to the platform as attachments, when the -htmlview URL is directly accessed. The impact ranges from executing commands as root on the server to retrieving sensitive information about encrypted e-mails, depending on the permissions of the target user.

Patch / fix

fixed in 1

liquidfiles liquidfiles 3.3.19

Is CVE-2020-29071 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Exploit prediction

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

lean0x2f.github.io https://lean0x2f.github.io/liquidfiles_advisory referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD	2.0	8.5	AV:N/AC:M/Au:S/C:C/I:C/A:C

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

lean0x2f.github.io /liquidfiles_advisory
exploit, third-party-advisory
man.liquidfiles.com /release_notes/version_3-3-x.html
release-notes, vendor-advisory

Sources

CVE List CVE-2020-29071
NVD CVE-2020-29071

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.