Services/COPage/classes/class.ilPCSourceCode.php in ILIAS 5.1.x, 5.2.x, and 5.3.x before 5.3.5 has XSS.

References

• advisory https://www.ilias.de/docu/goto.php?target=st_229
• patch https://github.com/ILIAS-eLearning/ILIAS/commit/7959485406eb981976b64fee363cf950603924ed