How severe is CVE-2020-15500?

CVE-2020-15500 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-2020-15500 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-15500?

CVE-2020-15500 affects Tileserver Tileservergl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-15500?

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

When was CVE-2020-15500 published?

CVE-2020-15500 was published on 2020-07-01 and last updated on 2026-06-17.

CVE-2020-15500

CVE-2020-15500 is a medium-severity vulnerability in Tileserver Tileservergl with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. 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: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Tileserver Tileservergl
Published: 2020-07-01
Last modified: 2026-06-17

Description

An issue was discovered in server.js in TileServer GL through 3.0.0. The content of the key GET parameter is reflected unsanitized in an HTTP response for the application's main page, causing reflected XSS.

Frequently asked questions

What is CVE-2020-15500?: An issue was discovered in server.js in TileServer GL through 3.0.0. The content of the key GET parameter is reflected unsanitized in an HTTP response for the application's main page, causing reflected XSS.
How severe is CVE-2020-15500?: CVE-2020-15500 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-2020-15500 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-15500?: CVE-2020-15500 affects Tileserver Tileservergl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-15500?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-15500 published?: CVE-2020-15500 was published on 2020-07-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tileserver:tileservergl:*:*:*:*:*:*:*:*

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