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Fencer Vulns
medium 5.4

CVE-2021-29835 json

IBM Business Automation Workflow 18.0, 19.0, 20.0, and 21.0 is vulnerable to cross-site scripting.

published 2021-10-22 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-16309

cvss
5.4
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 50%
public exploits
0
none known

Summary

IBM Business Automation Workflow 18.0, 19.0, 20.0, and 21.0 is vulnerable to 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: 204833.

Patch / fix

Exploit prediction

0.64% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 5.4 CVSS:3.0/C:L/PR:L/UI:R/S:C/A:N/AV:N/I:L/AC:L/RL:O/E:U/RC:C
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.0 5.4 CVSS:3.0/AV:N/AC:L/PR:L/UI:R/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 Business Automation Workflow

Classification

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

References

Sources

Fencer Vulns 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.