How severe is CVE-2026-3837?

CVE-2026-3837 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-3837 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3837?

CVE-2026-3837 affects Frappe. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3837?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3837 have an EU (EUVD) identifier?

Yes. CVE-2026-3837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25088.

When was CVE-2026-3837 published?

CVE-2026-3837 was published on 2026-04-22 and last updated on 2026-06-17.

CVE-2026-3837

CVE-2026-3837 is a medium-severity vulnerability in Frappe with a CVSS 3.x base score of 5.4. 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: Medium (CVSS 3.x base score 5.4)
CVSS v4: 4.6
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25088
Weakness: CWE-79
Affected product: Frappe
Published: 2026-04-22
Last modified: 2026-06-17

Description

An authenticated attacker can persist crafted values in multiple field types and trigger client-side script execution when another user opens the affected document in Desk. The vulnerable formatter implementations interpolate stored values into raw HTML attributes and element content without escaping This issue affects Frappe: 16.10.0.

Frequently asked questions

What is CVE-2026-3837?: An authenticated attacker can persist crafted values in multiple field types and trigger client-side script execution when another user opens the affected document in Desk. The vulnerable formatter implementations interpolate stored values into raw HTML attributes and element content without escaping This issue affects Frappe: 16.10.0.
How severe is CVE-2026-3837?: CVE-2026-3837 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-3837 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3837?: CVE-2026-3837 affects Frappe. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3837?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3837 have an EU (EUVD) identifier?: Yes. CVE-2026-3837 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25088.
When was CVE-2026-3837 published?: CVE-2026-3837 was published on 2026-04-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:frappe:frappe:16.10.0:*:*:*:*:*:*:*

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