CASCACascade Atlas

Evidence dossier

CVE-2026-16203

SourceCodester Class and Exam Timetabling System forCYS.php cross site scripting

0.0–100.0Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /forCYS.php. Such manipulation of the argument course leads to cross site scripting. The attack may be performed from remote. The exploit is publicly available and might be used.

State
PUBLISHED
Published
Jul 19, 2026
Updated
Jul 19, 2026
Evidence coverage
0%
CISA KEVUnknown / not present

Absence from KEV is not negative evidence.

FIRST EPSSUnknown

No eligible dated model observation.

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

VulDBoriginal assertion
container

SourceCodester Class and Exam Timetabling System forCYS.php cross site scripting

Applicability

Cited product scope

Trace impact →
SourceCodesterClass and Exam Timetabling System
[{"status": "affected", "version": "1.0"}]unknown

Assessments

CVSS by origin

5.1
VulDBCVSS 4.0 · role unknownCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
3.5
VulDBCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
3.5
VulDBCVSS 3.0 · role unknownCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
4.0
VulDBCVSS 2.0 · role unknownAV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR

Limitations and unknowns

  • CISA KEV absence is unknown, not evidence of no exploitation.
  • No eligible dated FIRST EPSS observation is present.
  • Affected or fixed status applies only to the exact cited product and version scope; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.