Is CVE-2026-25847 in the CISA KEV catalog?

No. CVE-2026-25847 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-25847?

CVE-2026-25847 has a CVSS v3 base score of 8.2 (HIGH).

What is the EPSS score for CVE-2026-25847?

CVE-2026-25847 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-25847?

Upgrade PyCharm to 2025.3.2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2026-25847

HIGH

8.2

CVSS v3

NVD

Description

In JetBrains PyCharm before 2025.3.2 a DOM-based XSS on Jupyter viewer page was possible

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

PyCharmWindows application

Affected:2025.3.2Fixed in:2025.3.2JetBrains s.r.o.

PyCharm Community EditionWindows application

Affected:2025.3.2Fixed in:2025.3.2JetBrains s.r.o.

PyCharm Community Edition (EAP)Windows application

Affected:2025.3.2Fixed in:2025.3.2JetBrains s.r.o.

PyCharm Professional EditionWindows application

Affected:2025.3.2Fixed in:2025.3.2JetBrains s.r.o.

PyCharm Professional Edition (EAP)Windows application

Affected:2025.3.2Fixed in:2025.3.2JetBrains s.r.o.

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory1

jetbrains.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-18.