CVE-2026-47383
CVE-2026-47383 is a high-severity vulnerability with a CVSS 4.0 base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: High (CVSS 4.0 base score 7.4)
- EPSS exploit prediction: 0% (21st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38617
- Weakness: CWE-79
- Published:
- Last modified:
Description
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
Frequently asked questions
- What is CVE-2026-47383?
- NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, an authenticated commenter could store HTML in row comments that executed as script when other users hovered over the comment in the expanded form view. The comment write paths persisted the raw comment body with no server-side sanitisation; the expanded-form sidebar then rendered the stored body and fed its data-tooltip attribute to Tippy with allowHTML: true. Even when the editor stripped script tags at write time, attribute-level payloads re-entered the DOM as live HTML on hover. This vulnerability is fixed in 2026.05.1.
- How severe is CVE-2026-47383?
- CVE-2026-47383 has a CVSS 4.0 base score of 7.4, rated high severity.
- Is CVE-2026-47383 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-47383?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-47383 have an EU (EUVD) identifier?
- Yes. CVE-2026-47383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38617.
- When was CVE-2026-47383 published?
- CVE-2026-47383 was published on 2026-06-23 and last updated on 2026-06-25.
References
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
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