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Description

A vulnerability was detected in Blossom up to 1.17.1. This vulnerability affects the function content of the file blossom-backend/backend/src/main/java/com/blossom/backend/server/article/draft/ArticleController.java of the component Article Title Handler. The manipulation results in cross site scripting. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED Reserved 2026-02-17 | Published 2026-02-17 | Updated 2026-02-23 | 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

2026-02-17:Advisory disclosed
2026-02-17:VulDB entry created
2026-02-21:VulDB entry last update

Credits

xcxr (VulDB User) reporter

References

vuldb.com/?id.346273 (VDB-346273 | Blossom Article Title ArticleController.java content cross site scripting) vdb-entry technical-description

vuldb.com/?ctiid.346273 (VDB-346273 | CTI Indicators (IOB, IOC, TTP, IOA)) signature permissions-required

vuldb.com/?submit.751987 (Submit #751987 | Blossom Blossom ≤ 1.17.1 Improper Input Validation) third-party-advisory

fx4tqqfvdw4.feishu.cn/docx/AXa1dpliBomr2Ox6dYJc6jJInEb exploit

cve.org (CVE-2026-2622)

nvd.nist.gov (CVE-2026-2622)

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