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Vulnerability record · CVE-2021-30140 · published 6 April 2021

CVE-2021-30140: Liquidfiles cross-site scripting vulnerability

Liquidfiles · Liquidfiles

LiquidFiles 3.4.15 has stored XSS through the "send email" functionality when sending a file via email to an administrator. When a file has no extension and contains malicious HTML / JavaScript content (such as SVG with HTML content), the payload is executed upon a click. This is fixed in 3.5.

5.4 CVSS 3.1 Medium EPSS 1.4% · top 29.4% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score, v2 3.5
1.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
10References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

LiquidFiles 3.4.15 has stored XSS through the "send email" functionality when sending a file via email to an administrator. When a file has no extension and contains malicious HTML / JavaScript content (such as SVG with HTML content), the payload is executed upon a click. This is fixed in 3.5.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/167228/LiquidFiles-3.4.15-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2022/May/41 ExploitMailing ListThird Party Advisory
https://gist.github.com/rodnt/9f7d368fac38cafa7334598ec94fb167 ExploitThird Party Advisory
https://liquidfiles.com/support.html Vendor Advisory
https://www.tempest.com.br Not Applicable
http://packetstormsecurity.com/files/167228/LiquidFiles-3.4.15-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
http://seclists.org/fulldisclosure/2022/May/41 ExploitMailing ListThird Party Advisory
https://gist.github.com/rodnt/9f7d368fac38cafa7334598ec94fb167 ExploitThird Party Advisory
https://liquidfiles.com/support.html Vendor Advisory
https://www.tempest.com.br Not Applicable

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.0CVE-2020-29071Liquidfiles cross-site scripting vulnerabilityAn 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…EPSS 1.7%8.8CVE-2025-46093Liquidfiles incorrect permission assignment vulnerabilityLiquidFiles before 4.1.2 supports FTP SITE CHMOD for mode 6777 (setuid and setgid), which allows FTPDrop users to execute arbitrary code as root by l…EPSS 0.53%8.8CVE-2021-43397Liquidfiles insufficiently protected credentials vulnerabilityLiquidFiles before 3.6.3 allows remote attackers to elevate their privileges from Admin (or User Admin) to Sysadmin.EPSS 3.8%7.3CVE-2025-56132Liquidfiles vulnerabilityLiquidFiles filetransfer server is vulnerable to a user enumeration issue in its password reset functionality. The application returns distinguishabl…EPSS 0.70%6.1CVE-2023-4393Liquidfiles injection vulnerabilityHTML and SMTP injections on the registration page of LiquidFiles versions 3.7.13 and below, allow an attacker to perform more advanced phishing attac…EPSS 0.31%6.1CVE-2020-29072Liquidfiles inclusion from untrusted sphere vulnerabilityA Cross-Site Script Inclusion vulnerability was found on LiquidFiles before 3.3.19. This client-side attack requires user interaction (opening a link…EPSS 0.71%3.8CVE-2025-46094Liquidfiles vulnerabilityLiquidFiles before 4.1.2 allows directory traversal by configuring the pathname of a local executable file as an Actionscript.EPSS 0.53%6.1CVE-2026-42897Microsoft Exchange Server XSS enables spoofingMicrosoft Exchange Server and Exchange Server Subscription Edition fail to neutralize input during web page generation, a cross-site scripting flaw (…KEVEPSS 0.52%analysed

Source: NIST National Vulnerability Database (record CVE-2021-30140), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.