Microweber allows Unrestricted File Upload

published 2020-05-20 6y ago modified 2026-06-17 4mo ago also GHSA-89fp-j8v7-p82h , EUVD-2022-3157

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 39%
public exploits: 0; none known

Microweber 1.1.18 allows Unrestricted File Upload because admin/view:modules/load_module:users#edit-user=1 does not verify that the file extension (used with the Add Image option on the Edit User screen) corresponds to an image file.

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Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 39% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

gist.github.com https://gist.github.com/virendratiwari03/0af29841fdf27207eb3abc8f28d326f3 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.2	AV:L/AC:L/Au:N/C:C/I:C/A:C
GitHub	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
packagist	microweber/microweber	<=1.1.18	no fix listed

Classification

Weakness

CWE-434 Unrestricted Upload of File with Dangerous Type

References

gist.github.com /virendratiwari03/0af29841fdf27207eb3abc8f28d326f3
web, exploit, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2020-13241
advisory
github.com /microweber/microweber
package

Sources

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.