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CVE-2025-55758MediumCVSS 5.4CVE published 28 October 2025Added to mySites.guru 28 October 2025

jDownloads (com_jdownloads) 1.9.0 to 4.0.47 - Multiple CSRF and Information Disclosure

jDownloads versions 1.0.0 through 4.0.47 contain multiple cross-site request forgery vectors (CVE-2025-55758), allowing an attacker to make an authenticated administrator perform unintended actions by following a crafted link. jDownloads 3.9.8.2 additionally allows a remote user to alter address bar parameters and view the file names of other users' downloads (CVE-2022-27909). Update to 4.1.6 or later, which is also the release that fixes the separate unauthenticated upload flaw covered by its own rule. This rule starts at 1.9.0 so it does not match the Xmap jDownloads integration plugin, which reports version 1.0.0 under the same element. Also within this rule: CVE-2020-19447, CVE-2020-19450, CVE-2020-19451 and CVE-2020-19455 (four SQL injections in jDownloads 3.2.63 via send.php f_marked_files_id, jdownloadshelper.php getUserLimits and updateLog, and categories.php filter_order). All four sit inside the 1.9.0 to 4.0.47 range and need no separate row.

Is my site affected?

Affected
jDownloads from 1.9.0 up to and including 4.0.47
Fixed in
Update to 4.1.6 or later
What to do
Update jDownloads to 4.1.6 or later.
Check whether your sites are affected

How CVE-2025-55758 is scored

The base metrics as CISA-ADP published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.

5.4 Medium

CVSS 3.1, scored by CISA-ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

How it is reached

AV:N Attack vector
Network. Reachable across the internet
AC:L Attack complexity
Low. Nothing to work around, it just works
PR:N Privileges required
None. No account needed
UI:R User interaction
Required. Someone has to click or visit something
S:U Scope
Unchanged. Contained to the extension it is in

What it does

C:L Confidentiality
Low. Some data can be read
I:L Integrity
Low. Some data can be altered
A:N Availability
None. The site stays up

Timeline

  1. 28 October 2025CVE-2025-55758 record published by its CNA
  2. 28 October 2025mySites.guru check added for jDownloads (from 1.9.0 up to and including 4.0.47)

Rule details

Other vulnerabilities in jDownloads

Updating for CVE-2025-55758 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

jDownloads

Latest safe version: 4.1.6

References

CVE-2025-55758 questions

Which versions are affected by CVE-2025-55758?
CVE-2025-55758 affects jDownloads from 1.9.0 up to and including 4.0.47.
How do I fix CVE-2025-55758?
Update jDownloads to 4.1.6 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2025-55758?
CISA-ADP scores it 5.4 (Medium) under CVSS 3.1. In plain terms: reachable across the internet, no account needed and someone has to click or visit something.

Running an affected version on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

Rules current as of 5 October 2026.