How severe is CVE-2021-4254?

CVE-2021-4254 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-4254 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4254?

CVE-2021-4254 affects Ctrlo Lenio. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4254?

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

When was CVE-2021-4254 published?

CVE-2021-4254 was published on 2022-12-18 and last updated on 2026-06-17.

CVE-2021-4254

CVE-2021-4254 is a low-severity vulnerability in Ctrlo Lenio with a CVSS 3.x base score of 3.5. 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-707.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-707
Affected product: Ctrlo Lenio
Published: 2022-12-18
Last modified: 2026-06-17

Description

A vulnerability has been found in ctrlo lenio and classified as problematic. Affected by this vulnerability is an unknown functionality of the file views/layouts/main.tt of the component Notice Handler. The manipulation of the argument notice.notice.text leads to cross site scripting. The attack can be launched remotely. The name of the patch is aa300555343c1c081951fcb68bfb6852fbba7451. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-216211.

Frequently asked questions

What is CVE-2021-4254?: A vulnerability has been found in ctrlo lenio and classified as problematic. Affected by this vulnerability is an unknown functionality of the file views/layouts/main.tt of the component Notice Handler. The manipulation of the argument notice.notice.text leads to cross site scripting. The attack can be launched remotely. The name of the patch is aa300555343c1c081951fcb68bfb6852fbba7451. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-216211.
How severe is CVE-2021-4254?: CVE-2021-4254 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-4254 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4254?: CVE-2021-4254 affects Ctrlo Lenio. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4254?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-4254 published?: CVE-2021-4254 was published on 2022-12-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ctrlo:lenio:*:*:*:*:*:*:*:*

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