CVE-2023-5991

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2023-12-26. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

The Hotel Booking Lite WordPress plugin before 4.8.5 does not validate file paths provided via user input, as well as does not have proper CSRF and authorisation checks, allowing unauthenticated users to download and delete arbitrary files on the server

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
65(Track*)
EG Risk 65/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
3%
EPSS %ILE
87%
KEV
Not listed

Published

December 26, 2023

Last Modified

June 17, 2026

Advisory Details (1)

Auto-updated Jul 26, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Hotel Booking Lite < 4.8.5 – Unauthenticated Arbitrary File Download & Deletion | CVE 2023-5991 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/e9d35e36-1e60-4483-b8b3-5cbf08fcd49e

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 41× 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. 2026-07-30 16:26 UTCEPSS rescore
  2. 2026-07-30 01:29 UTCEPSS rescore
  3. 2026-07-28 15:34 UTCEPSS rescore
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  9. 2026-07-23 02:30 UTCEG score recompute
  10. 2026-07-22 23:16 UTCEG score recompute
  11. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-13 22:28 UTCEPSS rescore
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  17. 2026-06-30 23:21 UTCEPSS rescore
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  19. 2026-06-29 14:05 UTCEPSS rescore
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  24. 2026-06-25 13:48 UTCEPSS rescore
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  36. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-16 17:51 UTCEPSS rescore
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  42. 2026-06-15 17:47 UTCEPSS rescore
  43. 2026-06-13 22:59 UTCEPSS rescore
  44. 2026-06-13 22:59 UTCEPSS rescore
  45. 2026-06-12 23:11 UTCEPSS rescore
  46. 2026-06-10 22:17 UTCEPSS rescore
  47. 2026-06-07 15:24 UTCEPSS rescore
  48. 2026-06-07 15:24 UTCEPSS rescore
  49. 2026-06-06 13:46 UTCEPSS rescore
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  51. 2026-06-05 22:46 UTCEPSS rescore
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  55. 2026-06-04 13:11 UTCEPSS rescore
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  57. 2026-06-01 13:51 UTCEPSS rescore
  58. 2026-05-31 22:30 UTCEPSS rescore
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  60. 2026-05-31 00:15 UTCEPSS rescore
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  62. 2026-05-29 13:43 UTCEPSS rescore
  63. 2026-05-28 13:44 UTCEPSS rescore
  64. 2026-05-28 13:44 UTCEPSS rescore
  65. 2026-05-24 11:26 UTCEG score recompute
  66. 2026-05-24 11:26 UTCGHSA enrichment

Publicly available exploits

(1 reference)

Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Nucleihttp/cves/2023/CVE-2023-5991.yaml
    First seen Jan 1, 2023

    Hotel Booking Lite < 4.8.5 - Arbitrary File Download & Deletion

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-5991?
CVE-2023-5991 is a critical vulnerability published on December 26, 2023. The Hotel Booking Lite WordPress plugin before 4.8.5 does not validate file paths provided via user input, as well as does not have proper CSRF and authorisation checks, allowing unauthenticated users to download and delete arbitrary files on the server
When was CVE-2023-5991 disclosed?
CVE-2023-5991 was first published in the National Vulnerability Database on December 26, 2023, 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-2023-5991 actively exploited?
CVE-2023-5991 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 12.7% of all scored CVEs.
What is the CVSS score of CVE-2023-5991?
CVE-2023-5991 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2023-5991?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5991, 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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