A cross-site scripting vulnerability exists in Jenkins Rebuilder Plugin 1.28 and earlier in RebuildAction/BooleanParameterValue.jelly, RebuildAction/ExtendedChoiceParameterValue.jelly, RebuildAction/FileParameterValue.jelly, RebuildAction/LabelParameterValue.jelly, RebuildAction/ListSubversionTagsParameterValue.jelly, RebuildAction/MavenMetadataParameterValue.jelly, RebuildAction/NodeParameterValue.jelly, RebuildAction/PasswordParameterValue.jelly, RebuildAction/RandomStringParameterValue.jelly, RebuildAction/RunParameterValue.jelly, RebuildAction/StringParameterValue.jelly, RebuildAction/TextParameterValue.jelly, RebuildAction/ValidatingStringParameterValue.jelly that allows users with Job/Configuration permission to insert arbitrary HTML into rebuild forms.
Severity
CVSS 3.0
5.4 medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-10-31)