How severe is CVE-2017-17478?

CVE-2017-17478 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-17478 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17478?

CVE-2017-17478 primarily affects Pega Pega Platform. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-17478?

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

When was CVE-2017-17478 published?

CVE-2017-17478 was published on 2018-02-27 and last updated on 2026-06-17.

CVE-2017-17478

CVE-2017-17478 is a medium-severity vulnerability in Pega Pega Platform with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Pega Pega Platform
Published: 2018-02-27
Last modified: 2026-06-17

Description

An XSS issue was discovered in Designer Studio in Pegasystems Pega Platform 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2, 7.2.1, and 7.2.2. A user with developer credentials can insert malicious code (up to 64 characters) into a text field in Designer Studio, after establishing context. Designer Studio is the developer workbench for Pega Platform. That XSS payload will execute when other developers visit the affected pages.

Frequently asked questions

What is CVE-2017-17478?: An XSS issue was discovered in Designer Studio in Pegasystems Pega Platform 7.1.7, 7.1.8, 7.1.9, 7.1.10, 7.2, 7.2.1, and 7.2.2. A user with developer credentials can insert malicious code (up to 64 characters) into a text field in Designer Studio, after establishing context. Designer Studio is the developer workbench for Pega Platform. That XSS payload will execute when other developers visit the affected pages.
How severe is CVE-2017-17478?: CVE-2017-17478 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-17478 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17478?: CVE-2017-17478 primarily affects Pega Pega Platform. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-17478?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-17478 published?: CVE-2017-17478 was published on 2018-02-27 and last updated on 2026-06-17.

References

https://pdn.pega.com/pegasystems-security-bulletin-cve-2017-17478/pegasystems-security-bulletin-cve-2017-17478

Affected products (7)

cpe:2.3:a:pega:pega_platform:7.1.7:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.1.8:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.1.9:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.1.10:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.2:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.2.1:*:*:*:*:*:*:*
cpe:2.3:a:pega:pega_platform:7.2.2:*:*:*:*:*:*:*

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