CVE-2026-1563Network attack vector

Developer-level script execution via reflected UI input

Published Jul 15, 2026 · Updated Jul 15, 2026

Reflected XSS in Pega Platform 8.1.0 through 25.1.2 allows remote authenticated users to execute script through Dev Studio. Pega has not disclosed the affected Dev Studio component, input parameter, or operation that reflects untrusted input into generated HTML. Exploitation requires developer or administrator access and passive user interaction, limiting the reported consequence to confidentiality and integrity within the application session.

CVSS severity4.8
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Pega Platform 8.1.0 through 25.1.2 allows remote authenticated users to execute script through Dev Studio. Pega has not disclosed the affected Dev Studio component, input parameter, or operation that reflects untrusted input into generated HTML. Exploitation requires developer or administrator access and passive user interaction, limiting the reported consequence to confidentiality and integrity within the application session.

The record

CVE
CVE-2026-1563
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
Pegasystems Inc.
Product
Pega Infinity
Classifications
CWE-79, T1203
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.1.0 <Infinity 25.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Pegasystems Inc. · Pega Infinityversion=8.1.0 <Infinity 25.1.2

Published CVSS scores

4.8Pegasystems Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
4.8NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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