CVE-2026-19998

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory (severity: LOW) published 2026-08-17. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A weakness has been identified in code-projects Online Shopping System 1.0. Impacted is an unknown function of the file offersmail.php. Executing a manipulation of the argument email can lead to cross site scripting. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
50(Attend)
EG Risk 50/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity43% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 20, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

Download Free Open Source Projects | PHP, C++ | Source code & Projects

https://code-projects.org/
generic

CVE1/online-shopping-system/vul6.md at main · zzzxc643/CVE1 · GitHub

https://github.com/zzzxc643/CVE1/blob/main/online-shopping-system/vul6.md

Vendor Advisories for CVE-2026-19998(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 19× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 12:59 UTCEG score recompute
  3. 2026-08-20 12:59 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 15:19 UTCEG score recompute
  6. 2026-08-19 15:19 UTCGHSA enrichment
  7. 2026-08-18 14:51 UTCEG score recompute
  8. 2026-08-18 14:51 UTCGHSA enrichment
  9. 2026-08-18 13:50 UTCEG score recompute
  10. 2026-08-18 13:50 UTCGHSA enrichment
  11. 2026-08-18 13:48 UTCEPSS rescore
  12. 2026-08-18 13:45 UTCMITRE cvelistV5CVSS v4 → 5.3
  13. 2026-08-18 08:48 UTCEG score recompute
  14. 2026-08-18 08:48 UTCGHSA enrichment
  15. 2026-08-17 13:47 UTCEPSS rescore
  16. 2026-08-17 08:23 UTCEG score recompute
  17. 2026-08-17 08:23 UTCNVD updateCVSS v4 → 2.1
  18. 2026-08-17 07:32 UTCEG score recompute
  19. 2026-08-17 07:31 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19998?
CVE-2026-19998 is a medium vulnerability published on August 17, 2026. A weakness has been identified in code-projects Online Shopping System 1.0. Impacted is an unknown function of the file offersmail.php. Executing a manipulation of the argument email can lead to cross site scripting. The attack may be performed from remote. The exploit has been made available to…
When was CVE-2026-19998 disclosed?
CVE-2026-19998 was first published in the National Vulnerability Database on August 17, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19998 actively exploited?
CVE-2026-19998 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.1% of all scored CVEs.
What is the CVSS score of CVE-2026-19998?
CVE-2026-19998 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-19998?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19998, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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