How severe is CVE-2020-25729?

CVE-2020-25729 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-2020-25729 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-25729?

CVE-2020-25729 affects Zoneminder. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-25729?

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

When was CVE-2020-25729 published?

CVE-2020-25729 was published on 2020-09-17 and last updated on 2026-06-17.

CVE-2020-25729

CVE-2020-25729 is a medium-severity vulnerability in Zoneminder 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

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zoneminder
Published: 2020-09-17
Last modified: 2026-06-17

Description

ZoneMinder before 1.34.21 has XSS via the connkey parameter to download.php or export.php.

Frequently asked questions

What is CVE-2020-25729?: ZoneMinder before 1.34.21 has XSS via the connkey parameter to download.php or export.php.
How severe is CVE-2020-25729?: CVE-2020-25729 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-2020-25729 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-25729?: CVE-2020-25729 affects Zoneminder. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-25729?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-25729 published?: CVE-2020-25729 was published on 2020-09-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zoneminder:zoneminder:*:*:*:*:*:*:*:*

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