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Fencer Intel
medium 6.4

CVE-2020-4920 json

IBM Jazz Team Server products are vulnerable to stored cross-site scripting.

published 5y ago modified 4mo ago also EUVD-2020-26167

cvss
6.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

IBM Jazz Team Server products are vulnerable to stored cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 191396.

Patch / fix

Is CVE-2020-4920 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

0.69% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 6.4 CVSS:3.0/A:N/C:L/I:L/PR:L/S:C/AC:L/AV:N/UI:N/RL:O/E:H/RC:C
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CNA 3.0 6.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • IBM Rational Engineering Lifecycle Manager
  • IBM Rational Quality Manager
  • IBM Rational Team Concert
  • IBM Rational Collaborative Lifecycle Management
  • IBM Rational DOORS Next Generation
  • IBM Engineering Test Management
  • IBM Engineering Lifecycle Optimization
  • IBM Engineering Workflow Management
  • IBM Rational Rhapsody Model Manager

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.