DedeCMS SWF File uploads_add.php cross site scripting

published 2024-12-04 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-50655

cvss: 3.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits: 0; none known

A vulnerability classified as problematic was found in DedeCMS 5.7.116. Affected by this vulnerability is an unknown functionality of the file /member/uploads_add.php of the component SWF File Handler. The manipulation of the argument mediatype leads to cross site scripting. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Patch / fix

fixed in 1

dedecms dedecms 5.7.116

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 23 mo ago (2024-12-05)

Exploit prediction

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/Hebing123/cve/issues/77 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CNA	3.1	3.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	3.0	3.5	CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
CNA	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:P/A:N
CNA	4.0	5.3	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD	3.1	5.4	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

n/a DedeCMS
dedecms dedecms

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation
CWE-94 Improper Control of Generation of Code

References

github.com /Hebing123/cve/issues/77
exploit, issue-tracking, third-party-advisory
vuldb.com /?id.286903
vdb-entry, technical-description, third-party-advisory
vuldb.com /?ctiid.286903
signature, permissions-required
vuldb.com /?submit.452983
third-party-advisory

Sources

CVE List CVE-2024-12181
NVD CVE-2024-12181

Fencer Vulns 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.

Summary