How severe is CVE-2021-35501?

CVE-2021-35501 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-2021-35501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-35501?

CVE-2021-35501 affects Pandorafms Pandora Fms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-35501?

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

When was CVE-2021-35501 published?

CVE-2021-35501 was published on 2021-06-25 and last updated on 2026-06-17.

CVE-2021-35501

Q: What is CVE-2021-35501?

PandoraFMS <=7.54 allows Stored XSS by placing a payload in the name field of a visual console. When a user or an administrator visits the console, the XSS payload will be executed.

CVE-2021-35501 is a medium-severity vulnerability in Pandorafms Pandora Fms 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% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Pandorafms Pandora Fms
Published: 2021-06-25
Last modified: 2026-06-17

Description

PandoraFMS <=7.54 allows Stored XSS by placing a payload in the name field of a visual console. When a user or an administrator visits the console, the XSS payload will be executed.

Frequently asked questions

What is CVE-2021-35501?: PandoraFMS <=7.54 allows Stored XSS by placing a payload in the name field of a visual console. When a user or an administrator visits the console, the XSS payload will be executed.
How severe is CVE-2021-35501?: CVE-2021-35501 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-2021-35501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-35501?: CVE-2021-35501 affects Pandorafms Pandora Fms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-35501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-35501 published?: CVE-2021-35501 was published on 2021-06-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:pandorafms:pandora_fms:*:*:*:*:*:*:*:*

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