CVE-2026-90527

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-13. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was detected in quequnlong shiyi-blog up to 1.2.1. Affected is an unknown function of the file blog-admin/src/views/message/message/index.vue of the component Add Message API. The manipulation of the argument body.content results in cross site scripting. The attack can be executed remotely. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

September 13, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 13, 2026
No patch confirmed yet.
generic

拾壹博客: 一款vue+springboot前后端分离的博客系统，博客后台管理系统使用了vue+elmentui开发，后端使用Sa-Token进行权限管理,支持动态菜单权限，动态定时任务，文件支持本地和S3协议上传，使用ElasticSearch作为全文检索服务，支持QQ、微信公众号扫码、码云、GitHub登录。实现即时通讯聊天室功能

https://gitee.com/quequnlong/shiyi-blog/
generic

shiyi-blog 中留言管理页面存在存储型 XSS 漏洞 · Issue #IK5RF6 · bule/拾壹博客 - Gitee.com

https://gitee.com/quequnlong/shiyi-blog/issues/IK5RF6

Vendor Advisories for CVE-2026-90527(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 21× in last 7d / 24× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 13:36 UTCEG score recompute
  2. 2026-09-20 13:36 UTCGHSA enrichment
  3. 2026-09-19 14:05 UTCEG score recompute
  4. 2026-09-19 14:05 UTCGHSA enrichment
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 14:33 UTCEG score recompute
  7. 2026-09-18 14:33 UTCGHSA enrichment
  8. 2026-09-17 19:32 UTCEPSS rescore
  9. 2026-09-17 15:01 UTCGHSA enrichment
  10. 2026-09-16 15:30 UTCEG score recompute
  11. 2026-09-16 15:30 UTCGHSA enrichment
  12. 2026-09-16 14:26 UTCEG score recompute
  13. 2026-09-16 14:26 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 20:48 UTCEG score recompute
  17. 2026-09-15 20:48 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 21:07 UTCGHSA enrichment
  20. 2026-09-14 14:56 UTCEG score recompute
  21. 2026-09-14 14:56 UTCGHSA enrichment
  22. 2026-09-13 15:25 UTCEG score recompute
  23. 2026-09-13 14:25 UTCEG score recompute
  24. 2026-09-13 14:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-90527?
CVE-2026-90527 is a medium vulnerability published on September 13, 2026. A vulnerability was detected in quequnlong shiyi-blog up to 1.2.1. Affected is an unknown function of the file blog-admin/src/views/message/message/index.vue of the component Add Message API. The manipulation of the argument body.content results in cross site scripting. The attack can be executed…
When was CVE-2026-90527 disclosed?
CVE-2026-90527 was first published in the National Vulnerability Database on September 13, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90527 actively exploited?
CVE-2026-90527 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 80.1% of all scored CVEs.
What is the CVSS score of CVE-2026-90527?
CVE-2026-90527 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-90527?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-90527, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-90527

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