How severe is CVE-2021-43436?

CVE-2021-43436 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-2021-43436 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43436?

CVE-2021-43436 affects Iresturant Project Iresturant. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43436?

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

When was CVE-2021-43436 published?

CVE-2021-43436 was published on 2022-01-12 and last updated on 2026-06-17.

CVE-2021-43436

CVE-2021-43436 is a medium-severity vulnerability in Iresturant Project Iresturant 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 v2: 3.5
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Iresturant Project Iresturant
Published: 2022-01-12
Last modified: 2026-06-17

Description

MartDevelopers Inc iResturant v1.0 allows Stored XSS by placing a payload in the username field during a login attempt. When an administrator looks at the log of failed logins, the XSS payload will be executed.

Frequently asked questions

What is CVE-2021-43436?: MartDevelopers Inc iResturant v1.0 allows Stored XSS by placing a payload in the username field during a login attempt. When an administrator looks at the log of failed logins, the XSS payload will be executed.
How severe is CVE-2021-43436?: CVE-2021-43436 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-2021-43436 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43436?: CVE-2021-43436 affects Iresturant Project Iresturant. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43436?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43436 published?: CVE-2021-43436 was published on 2022-01-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:iresturant_project:iresturant:1.0:*:*:*:*:*:*:*

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