PT-2026-20558 · Tsinghua Unigroup · Electronic Archives System

Lanmeik · CVE-2026-2684 · Published 2026-02-18 · Updated 2026-03-03

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Tsinghua Unigroup Electronic Archives System versions prior to 3.2.210802(62532)

Description A flaw exists in Tsinghua Unigroup Electronic Archives System that allows for unrestricted file uploads. This occurs due to a manipulation of the File argument within an unknown function of the /Archive/ErecordManage/uploadFile.html file. The attack can be initiated remotely. The exploit for this issue has been publicly disclosed. The vendor was informed of this disclosure but did not provide a response.

Recommendations Versions prior to 3.2.210802(62532) should be updated. As a temporary workaround, restrict access to the /Archive/ErecordManage/uploadFile.html file to minimize the risk of exploitation.

Exploit

Fix

Improper Access Control

Unrestricted File Upload

Weakness Enumeration

CWE-284

CWE-434

Related Identifiers

CVE-2026-2684

Affected Products

Electronic Archives System

References · 12

• 🔥 https://github.com/luoye197-prog/ziguang-fileupload/blob/main/introduce%26poc · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-2684 · Security Note
• https://osv.dev/vulnerability/CVE-2026-2684 · Vendor Advisory
• https://vuldb.com/?submit.753973 · Note
• https://vuldb.com/?ctiid.346475 · Note
• https://twitter.com/CVEnew/status/2026265072402612234 · Twitter Post
• https://github.com/luoye197-prog/ziguang-fileupload · Note
• https://t.me/cveNotify/152456 · Telegram Post
• https://t.me/CVEtracker/45041 · Telegram Post
• https://twitter.com/CVEarity/status/2024388853004718353 · Twitter Post
• https://vuldb.com/?id.346475 · Note
• https://t.me/cveNotify/153984 · Telegram Post