CVE-2017-7271

MEDIUMNVD 6.16.1—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 1.0%, top 40% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.1
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 6.1Exploit: NoneExposed: 0

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

Reflected Cross-site scripting (XSS) vulnerability in Yii Framework before 2.0.11, when development mode is used, allows remote attackers to inject arbitrary web script or HTML via crafted request data that is mishandled on the debug-mode exception screen.

CVSS v3
6.1
EG Score
6.1(medium)
EPSS
60.5%
KEV
Not listed

Published

March 27, 2017

Last Modified

May 13, 2026

References (8)

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
yiisoft/yii22.0.0 ... 2.0.9 (14 versions)2.0.11—

Data Freshness Timeline

(refreshed 12× in last 7d / 46× 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.

Showing the most recent 100 of 123 total refreshes for this CVE.

  1. 2026-07-22 22:10 UTCEG score recompute
  2. 2026-07-22 14:04 UTCEPSS rescore
  3. 2026-07-21 15:21 UTCEPSS rescore
  4. 2026-07-20 17:04 UTCEPSS rescore
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  6. 2026-07-19 14:28 UTCEPSS rescore
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  10. 2026-07-18 10:01 UTCEPSS rescore
  11. 2026-07-16 16:59 UTCEPSS rescore
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  13. 2026-07-15 16:55 UTCEPSS rescore
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  15. 2026-07-15 01:56 UTCEPSS rescore
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  17. 2026-07-13 22:26 UTCEPSS rescore
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  19. 2026-07-12 05:43 UTCEPSS rescore
  20. 2026-07-12 01:41 UTCOSV refresh
  21. 2026-07-11 08:24 UTCEPSS rescore
  22. 2026-07-09 19:06 UTCEPSS rescore
  23. 2026-07-08 15:11 UTCEPSS rescore
  24. 2026-07-07 13:42 UTCEPSS rescore
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  1. 2026-07-06 16:24 UTCEPSS rescore
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  7. 2026-07-02 16:54 UTCEPSS rescore
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  9. 2026-06-30 23:19 UTCEPSS rescore
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  19. 2026-06-23 21:30 UTCEPSS rescore
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  21. 2026-06-23 08:00 UTCOSV refresh
  22. 2026-06-22 14:23 UTCEPSS rescore
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  24. 2026-06-21 14:54 UTCEPSS rescore
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  26. 2026-06-21 01:57 UTCEPSS rescore
  27. 2026-06-21 01:57 UTCEPSS rescore
  28. 2026-06-19 19:23 UTCEPSS rescore
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  30. 2026-06-18 17:50 UTCEPSS rescore
  31. 2026-06-17 17:50 UTCEPSS rescore
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  40. 2026-06-11 13:57 UTCEPSS rescore
  41. 2026-06-10 22:15 UTCEPSS rescore
  42. 2026-06-10 13:19 UTCEPSS rescore
  43. 2026-06-08 14:14 UTCEPSS rescore
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  45. 2026-06-07 15:22 UTCEPSS rescore
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  47. 2026-06-06 13:45 UTCEPSS rescore
  48. 2026-06-06 13:45 UTCEPSS rescore
  49. 2026-06-06 07:04 UTCOSV refresh
  50. 2026-06-05 22:44 UTCEPSS rescore
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  63. 2026-05-29 13:41 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2017-7271?
CVE-2017-7271 is a medium vulnerability published on March 27, 2017. Reflected Cross-site scripting (XSS) vulnerability in Yii Framework before 2.0.11, when development mode is used, allows remote attackers to inject arbitrary web script or HTML via crafted request data that is mishandled on the debug-mode exception screen.
When was CVE-2017-7271 disclosed?
CVE-2017-7271 was first published in the National Vulnerability Database on March 27, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-7271 actively exploited?
CVE-2017-7271 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-7271?
CVE-2017-7271 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2017-7271?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-7271, 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.

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