How severe is CVE-2023-34623?

CVE-2023-34623 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-34623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34623?

CVE-2023-34623 affects Jtidy Project Jtidy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34623?

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.

When was CVE-2023-34623 published?

CVE-2023-34623 was published on 2023-06-14 and last updated on 2026-06-17.

CVE-2023-34623

CVE-2023-34623 is a high-severity vulnerability in Jtidy Project Jtidy with a CVSS 3.x base score of 7.5. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Jtidy Project Jtidy
Published: 2023-06-14
Last modified: 2026-06-17

Description

An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.

Frequently asked questions

What is CVE-2023-34623?: An issue was discovered jtidy thru r938 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
How severe is CVE-2023-34623?: CVE-2023-34623 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-34623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34623?: CVE-2023-34623 affects Jtidy Project Jtidy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34623?: 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.
When was CVE-2023-34623 published?: CVE-2023-34623 was published on 2023-06-14 and last updated on 2026-06-17.

References

https://github.com/trajano/jtidy/issues/4

Affected products (1)

cpe:2.3:a:jtidy_project:jtidy:*:*:*:*:*:*:*:*

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