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NVD / CVE Program· CNA Pega

CVE-2026-1563: Pega Platform versions 8.1.0 through 25.1.2 are affected by an Reflected Cross-site scripting (XSS) vulnerability in a user interface component. Requires a high

Noroxi assessment

Priority: Monitor (action score 19/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. Administrator privileges are required. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Pega Platform versions 8.1.0 through 25.1.2 are affected by an Reflected Cross-site scripting (XSS) vulnerability in a user interface component. Requires a high privileged user with a developer role.

MediumCVSS 4.8 · v4.0—No exploit No fix recorded
Published
Jul 15, 2026
Updated
Oct 24, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Pega
4.8
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-1563

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
pegapega platform

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • pega pega platform8.1 and later · before 24.2.4
  • pega pega platform25.1.0 and later · before 25.1.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Pega). Independent of NVD's CPE analysis and usually ahead of it.

  • Pegasystems Pega Infinity

    • 8.1.0 and later · before Infinity 25.1.2affected

Same product

pega: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-32090Pega platform clients who are using versions 6.1 through 7.3.1 may be utilizing default credentials
    39Monitor
  • CVE-2023-28094Pega platform clients who are using versions 7.4 through 8.8.x and have upgraded from a version prior to 8.x may be utilizing default creden
    39Monitor
  • CVE-2020-15390pyActivity in Pega Platform 8.4.0.237 has a security misconfiguration that leads to an improper access control vulnerability via =GetWebInfo
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-1564Apr 15, 2026 · Pega Platform versions 8.1.0 through 25.1.1 are affected by an HTML Injection vulnerability in a user interface component. Requires a high privileged user with
    20Monitor
  • ← EarlierCVE-2026-1711Apr 15, 2026 · Pega Platform versions 8.1.0 through 25.1.1 are affected by a Stored Cross-Site Scripting vulnerability in a user interface component. Requires a high privilege
    19Monitor
  • ← EarlierCVE-2026-1562Jul 15, 2026 · Pega Platform versions 8.1.0 through 25.1.2 are affected by an Stored Cross-site scripting (XSS) vulnerability in a user interface component. Requires a high pr
    18Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-2160457 days apartPega Platform versions 8.4.3 to Infinity 24.2.1 are affected by an XSS issue with Mashup
    24Monitor
  • CVE-2025-2161457 days apartPega Platform versions 7.2.1 to Infinity 24.2.1 are affected by an XSS issue with Mashup
    24Monitor
  • CVE-2025-8681308 days apartPega Platform versions 7.1.0 to Infinity 24.2.2 are affected by a Stored XSS issue in a user interface component
    21Monitor
  • CVE-2026-171191 days apartPega Platform versions 8.1.0 through 25.1.1 are affected by a Stored Cross-Site Scripting vulnerability in a user interface component. Requires a high privilege
    19Monitor
  • CVE-2025-62184106 days apartPega Platform versions 8.1.0 through 25.1.0 are affected by a Stored Cross-site Scripting vulnerability in a user interface component.
    19Monitor
  • CVE-2026-15620 days apartPega Platform versions 8.1.0 through 25.1.2 are affected by an Stored Cross-site scripting (XSS) vulnerability in a user interface component. Requires a high pr
    18Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
P
Scope
X

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records