CVE-2026-76837

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreHIGH confidence

Score 6.4 from GitHub Security Advisory published 2026-08-24. the CNA's CVSS baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 4 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

Baserow interpolates a user's display name into the rich-text mention markup without HTML encoding. PATCH /api/user/account/ stores the first_name value verbatim, and the mention renderer in web-frontend/modules/core/editor/mention.js builds its element with a template literal that places the name into a data-label attribute and the element body unescaped. A name containing a double quote closes that attribute and the opening tag, so following markup lands in the element content. The result is rendered through v-html by the rich-text field components, so any rich-text cell mentioning the account executes the stored script for every workspace member who views the table, without a click. Any workspace member, at the lowest permission level, can set the name and reach every other member of the workspace, and the payload persists until the name is changed or the mentioning row is removed. Version 2.3.0 escapes the value before interpolation.

CVSS v3
6.4
EG Score
6.4(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

August 24, 2026

Last Modified

August 29, 2026

Advisory Details (5)

Auto-updated Aug 24, 2026
Patch available. Sources: github_pr, github_commit.
generic

Baserow before 2.3.0 Stored Cross-Site Scripting via Rich Text Mention Display Name | Advisories | VulnCheck

https://www.vulncheck.com/advisories/baserow-before-stored-cross-site-scripting-via-rich-text-mention-display-name
generic

baserow/web-frontend/modules/core/editor/mention.js at 2.2.2 · baserow/baserow · GitHub

https://github.com/baserow/baserow/blob/2.2.2/web-frontend/modules/core/editor/mention.js
github_commit Patch Available

commit a870dc0d38c9 (baserow/baserow)

Patch available: baserow/baserow 2.3.0 (contains commit a870dc0d38c9)

https://github.com/baserow/baserow/commit/a870dc0d38c9
github_pr Patch Available

fix(web-frontend): escape user name in rich text mentions to prevent stored XSS

Patch available: baserow/baserow 2.3.0 (PR #5618 merged 2026-06-30)

https://github.com/baserow/baserow/pull/5618
generic

GitHub - baserow/baserow: Build databases, automations, apps & agents with AI — no code. Open source platform available on cloud and self-hosted. GDPR, HIPAA, SOC 2 compliant. Best Airtable alternative. · GitHub

https://github.com/baserow/baserow

Vendor Advisories for CVE-2026-76837(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 18× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 12:03 UTCEG score recompute
  3. 2026-08-29 12:02 UTCGHSA enrichment
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 17:52 UTCGHSA enrichment
  6. 2026-08-27 18:14 UTCEG score recompute
  7. 2026-08-27 18:14 UTCGHSA enrichment
  8. 2026-08-27 14:25 UTCEPSS rescore
  9. 2026-08-26 17:48 UTCEG score recompute
  10. 2026-08-26 17:47 UTCGHSA enrichment
  11. 2026-08-26 14:47 UTCEPSS rescore
  12. 2026-08-25 17:56 UTCEG score recompute
  13. 2026-08-25 17:56 UTCGHSA enrichment
  14. 2026-08-25 13:49 UTCEPSS rescore
  15. 2026-08-24 18:21 UTCEG score recompute
  16. 2026-08-24 18:16 UTCEG score recompute
  17. 2026-08-24 17:51 UTCEG score recompute
  18. 2026-08-24 17:51 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-76837?
CVE-2026-76837 is a medium vulnerability published on August 24, 2026. Baserow interpolates a user's display name into the rich-text mention markup without HTML encoding. PATCH /api/user/account/ stores the first_name value verbatim, and the mention renderer in web-frontend/modules/core/editor/mention.js builds its element with a template literal that places the name…
When was CVE-2026-76837 disclosed?
CVE-2026-76837 was first published in the National Vulnerability Database on August 24, 2026, with the most recent update on August 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-76837 actively exploited?
CVE-2026-76837 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 90.5% of all scored CVEs.
What is the CVSS score of CVE-2026-76837?
CVE-2026-76837 has a CVSS v4.0 base score of 6.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-76837?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-76837, 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-2026-76837

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