CVE-2026-4186 | THREATINT

Description

A vulnerability was determined in UEditor up to 1.4.3.2. This issue affects some unknown processing of the file php/controller.php?action=uploadimage of the component JSONP Callback Handler. This manipulation of the argument callback causes cross site scripting. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.

PUBLISHED Reserved 2026-03-14 | Published 2026-03-15 | Updated 2026-03-17 | Assigner VulDB

MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

LOW: 3.5CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

4.0AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

Problem types

Cross Site Scripting

Code Injection

Timeline

2026-03-14:	Advisory disclosed
2026-03-14:	VulDB entry created
2026-03-14:	VulDB entry last update

Credits

s0l42 (VulDB User) reporter

VulDB coordinator

References

vuldb.com/?id.351092 (VDB-351092 | UEditor JSONP Callback controller.php cross site scripting) vdb-entry technical-description

vuldb.com/?ctiid.351092 (VDB-351092 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.769842 (Submit #769842 | ueditor 1.4.3.2 jsonp injection) third-party-advisory

magnificent-dill-351.notion.site/...18ed80cbb96dc8e1a9f0e8b2 exploit

cve.org (CVE-2026-4186)

nvd.nist.gov (CVE-2026-4186)

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