CVE-2026-27473

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

Score 6.4 from GitHub Security Advisory published 2026-02-19. a secondary CVSS source baseline 6.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

SPIP before 4.4.9 allows Stored Cross-Site Scripting (XSS) via syndicated sites in the private area. The #URL_SYNDIC output is not properly sanitized on the private syndicated site page, allowing an attacker who can set a malicious syndication URL to inject persistent scripts that execute when other administrators view the syndicated site details.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

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
Severity64% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
19%
KEV
Not listed

Published

February 19, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

SPIP < 4.4.9 Stored Cross-Site Scripting via Syndicated Sites | Advisories | VulnCheck

https://www.vulncheck.com/advisories/spip-stored-cross-site-scripting-via-syndicated-sites
generic

Overload

https://git.spip.net/spip/spip
generic

Mise à jour de sécurité : sortie de SPIP 4.4.9 - SPIP Blog

https://blog.spip.net/Mise-a-jour-de-securite-sortie-de-SPIP-4-4-9.html

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
spip3.2.11-3 ... 4.4.9+dfsg-1 (70 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
spip4.4.10+dfsg-1 ... 4.4.9+dfsg-1 (9 versions)4.4.11+dfsg-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
spip4.4.3+dfsg-1 ... 4.4.8+dfsg-1 (6 versions)4.4.9+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 26× 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. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 20:15 UTCEPSS rescore
  3. 2026-09-18 20:20 UTCOSV refresh
  4. 2026-09-18 19:28 UTCEPSS rescore
  5. 2026-09-18 19:27 UTCEPSS rescore
  6. 2026-09-17 19:30 UTCEPSS rescore
  7. 2026-09-16 14:08 UTCEPSS rescore
  8. 2026-09-16 05:15 UTCEPSS rescore
  9. 2026-09-13 16:47 UTCEPSS rescore
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-11 14:52 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-08 22:00 UTCEPSS rescore
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-06 13:47 UTCEPSS rescore
  16. 2026-09-06 13:47 UTCEPSS rescore
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:11 UTCEPSS rescore
  19. 2026-09-01 13:53 UTCEPSS rescore
  20. 2026-09-01 04:39 UTCEPSS rescore
  21. 2026-08-30 23:23 UTCOSV refresh
  22. 2026-08-30 19:17 UTCEPSS rescore
  23. 2026-08-30 01:22 UTCEPSS rescore
  24. 2026-08-28 21:41 UTCEPSS rescore
  25. 2026-08-26 14:46 UTCEPSS rescore
Show 44 more
  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 01:30 UTCEPSS rescore
  11. 2026-08-14 09:33 UTCEG score recompute
  12. 2026-08-14 09:33 UTCGHSA enrichment
  13. 2026-08-13 22:00 UTCEPSS rescore
  14. 2026-08-13 01:44 UTCEG score recompute
  15. 2026-08-13 01:44 UTCGHSA enrichment
  16. 2026-08-12 13:50 UTCEPSS rescore
  17. 2026-08-11 13:42 UTCEPSS rescore
  18. 2026-08-11 07:55 UTCEG score recompute
  19. 2026-08-11 07:54 UTCGHSA enrichment
  20. 2026-08-11 00:00 UTCEPSS rescore
  21. 2026-08-10 09:30 UTCEG score recompute
  22. 2026-08-10 09:30 UTCGHSA enrichment
  23. 2026-08-09 13:46 UTCEPSS rescore
  24. 2026-08-09 09:09 UTCEG score recompute
  25. 2026-08-09 09:09 UTCGHSA enrichment
  26. 2026-08-08 16:37 UTCEPSS rescore
  27. 2026-08-07 21:24 UTCEG score recompute
  28. 2026-08-07 21:24 UTCGHSA enrichment
  29. 2026-08-06 13:46 UTCEPSS rescore
  30. 2026-08-06 03:25 UTCEG score recompute
  31. 2026-08-06 03:25 UTCGHSA enrichment
  32. 2026-08-05 19:17 UTCEPSS rescore
  33. 2026-08-04 15:10 UTCEPSS rescore
  34. 2026-08-03 10:36 UTCEPSS rescore
  35. 2026-08-02 20:06 UTCEG score recompute
  36. 2026-08-02 20:06 UTCGHSA enrichment
  37. 2026-08-02 02:26 UTCEPSS rescore
  38. 2026-08-01 04:16 UTCEPSS rescore
  39. 2026-07-30 16:27 UTCEPSS rescore
  40. 2026-07-30 01:30 UTCEPSS rescore
  41. 2026-07-28 15:36 UTCEPSS rescore
  42. 2026-07-27 14:46 UTCEG score recompute
  43. 2026-07-27 14:45 UTCGHSA enrichment
  44. 2026-07-27 13:55 UTCOSV refresh

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-27473?
CVE-2026-27473 is a medium vulnerability published on February 19, 2026. SPIP before 4.4.9 allows Stored Cross-Site Scripting (XSS) via syndicated sites in the private area. The #URL_SYNDIC output is not properly sanitized on the private syndicated site page, allowing an attacker who can set a malicious syndication URL to inject persistent scripts that execute when…
When was CVE-2026-27473 disclosed?
CVE-2026-27473 was first published in the National Vulnerability Database on February 19, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27473 actively exploited?
CVE-2026-27473 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 80.6% of all scored CVEs.
What is the CVSS score of CVE-2026-27473?
CVE-2026-27473 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-27473?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27473, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-27473

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