CVE-2021-26247

CVE-2021-26247 is a medium-severity vulnerability in Cacti with a CVSS 3.x base score of 6.1. 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

Description

As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.

Frequently asked questions

What is CVE-2021-26247?
As an unauthenticated remote user, visit "http://<CACTI_SERVER>/auth_changepassword.php?ref=<script>alert(1)</script>" to successfully execute the JavaScript payload present in the "ref" URL parameter.
How severe is CVE-2021-26247?
CVE-2021-26247 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-26247 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26247?
CVE-2021-26247 affects Cacti. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-26247?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26247 published?
CVE-2021-26247 was published on 2022-01-19 and last updated on 2026-06-17.

References

Affected products (1)

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