How severe is CVE-2026-2952?

CVE-2026-2952 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-2952 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2952?

CVE-2026-2952 affects Vaelsys. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2952?

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-2026-2952 have an EU (EUVD) identifier?

Yes. CVE-2026-2952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7684.

When was CVE-2026-2952 published?

CVE-2026-2952 was published on 2026-02-22 and last updated on 2026-06-17.

CVE-2026-2952

CVE-2026-2952 is a high-severity vulnerability in Vaelsys with a CVSS 3.x base score of 7.3. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7684
Weakness: CWE-78
Affected product: Vaelsys
Published: 2026-02-22
Last modified: 2026-06-17

Description

A flaw has been found in Vaelsys 4.1.0. This vulnerability affects unknown code of the file /tree/tree_server.php of the component HTTP POST Request Handler. This manipulation of the argument xajaxargs causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-2952?: A flaw has been found in Vaelsys 4.1.0. This vulnerability affects unknown code of the file /tree/tree_server.php of the component HTTP POST Request Handler. This manipulation of the argument xajaxargs causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2952?: CVE-2026-2952 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-2952 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2952?: CVE-2026-2952 affects Vaelsys. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2952?: 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-2026-2952 have an EU (EUVD) identifier?: Yes. CVE-2026-2952 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7684.
When was CVE-2026-2952 published?: CVE-2026-2952 was published on 2026-02-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vaelsys:vaelsys:4.1.0:*:*:*:*:*:*:*

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