CVE-2026-45348

HIGHNVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

Score 8.7 from GitHub Security Advisory (severity: HIGH) published 2026-05-14. NVD baseline CVSS 8.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.7Exploit: None knownExposed: 0

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

pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quoted HTML and then writes the result to the DOM via $(div).html(html). No escaping runs between the API value and innerHTML. An attacker (Alice) who can submit a package link puts a single quote plus event handler into the URL, breaks out of the attribute, and executes JavaScript in every operator's browser that opens the downloads view. The theme does not set a Content Security Policy that restricts inline script or event handlers. This vulnerability is fixed in 0.5.0b3.dev100.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity87% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

May 28, 2026

Last Modified

May 29, 2026

Advisory Details (1)

Auto-updated May 28, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Stored XSS in Downloads view via unsanitized link URL in packages.js template literal · Advisory · pyload/pyload · GitHub

https://github.com/pyload/pyload/security/advisories/GHSA-fcjq-435v-jx94

Vendor Advisories for CVE-2026-45348(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
pippyload-ng—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
pyload-ng0.5.0a5.dev528 ... 0.5.0b3.dev99 (104 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 62× 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 217 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 04:40 UTCEG score recompute
  10. 2026-08-25 04:40 UTCGHSA enrichment
  11. 2026-08-23 14:28 UTCEG score recompute
  12. 2026-08-23 14:28 UTCGHSA enrichment
  13. 2026-08-23 00:19 UTCEPSS rescore
  14. 2026-08-21 23:49 UTCEPSS rescore
  15. 2026-08-21 15:25 UTCGHSA enrichment
  16. 2026-08-21 00:40 UTCEG score recompute
  17. 2026-08-21 00:40 UTCGHSA enrichment
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 10:45 UTCEG score recompute
  20. 2026-08-20 10:45 UTCGHSA enrichment
  21. 2026-08-19 17:04 UTCEPSS rescore
  22. 2026-08-18 13:48 UTCEPSS rescore
  23. 2026-08-17 13:47 UTCEPSS rescore
  24. 2026-08-17 08:00 UTCGHSA enrichment
  25. 2026-08-16 16:07 UTCEG score recompute
Show 75 more
  1. 2026-08-16 16:07 UTCGHSA enrichment
  2. 2026-08-16 14:56 UTCEPSS rescore
  3. 2026-08-16 02:33 UTCEG score recompute
  4. 2026-08-16 02:33 UTCGHSA enrichment
  5. 2026-08-16 02:14 UTCEPSS rescore
  6. 2026-08-15 03:17 UTCEG score recompute
  7. 2026-08-15 03:17 UTCGHSA enrichment
  8. 2026-08-15 01:30 UTCEPSS rescore
  9. 2026-08-14 14:07 UTCGHSA enrichment
  10. 2026-08-14 00:58 UTCEG score recompute
  11. 2026-08-14 00:58 UTCGHSA enrichment
  12. 2026-08-13 22:00 UTCEPSS rescore
  13. 2026-08-13 04:56 UTCGHSA enrichment
  14. 2026-08-12 15:47 UTCEG score recompute
  15. 2026-08-12 15:47 UTCGHSA enrichment
  16. 2026-08-12 13:51 UTCEPSS rescore
  17. 2026-08-12 02:38 UTCEG score recompute
  18. 2026-08-12 02:38 UTCGHSA enrichment
  19. 2026-08-11 13:28 UTCGHSA enrichment
  20. 2026-08-11 00:05 UTCEG score recompute
  21. 2026-08-11 00:05 UTCGHSA enrichment
  22. 2026-08-11 00:00 UTCEPSS rescore
  23. 2026-08-10 09:47 UTCGHSA enrichment
  24. 2026-08-09 20:38 UTCEG score recompute
  25. 2026-08-09 20:38 UTCGHSA enrichment
  26. 2026-08-09 13:46 UTCEPSS rescore
  27. 2026-08-09 07:29 UTCGHSA enrichment
  28. 2026-08-08 18:20 UTCEG score recompute
  29. 2026-08-08 18:20 UTCGHSA enrichment
  30. 2026-08-08 16:37 UTCEPSS rescore
  31. 2026-08-08 02:23 UTCEG score recompute
  32. 2026-08-08 02:23 UTCGHSA enrichment
  33. 2026-08-07 13:14 UTCGHSA enrichment
  34. 2026-08-07 00:04 UTCEG score recompute
  35. 2026-08-07 00:04 UTCGHSA enrichment
  36. 2026-08-06 13:47 UTCEPSS rescore
  37. 2026-08-06 09:57 UTCGHSA enrichment
  38. 2026-08-05 20:47 UTCEG score recompute
  39. 2026-08-05 20:47 UTCGHSA enrichment
  40. 2026-08-05 19:17 UTCEPSS rescore
  41. 2026-08-04 23:41 UTCEG score recompute
  42. 2026-08-04 23:41 UTCGHSA enrichment
  43. 2026-08-04 15:10 UTCEPSS rescore
  44. 2026-08-04 10:38 UTCEPSS rescore
  45. 2026-08-04 05:19 UTCGHSA enrichment
  46. 2026-08-03 16:10 UTCEG score recompute
  47. 2026-08-03 16:10 UTCGHSA enrichment
  48. 2026-08-03 10:36 UTCEPSS rescore
  49. 2026-08-02 16:46 UTCGHSA enrichment
  50. 2026-08-02 03:37 UTCEG score recompute
  51. 2026-08-02 03:37 UTCGHSA enrichment
  52. 2026-08-02 02:27 UTCEPSS rescore
  53. 2026-08-01 14:28 UTCEG score recompute
  54. 2026-08-01 14:28 UTCGHSA enrichment
  55. 2026-08-01 04:16 UTCEPSS rescore
  56. 2026-07-31 06:19 UTCEG score recompute
  57. 2026-07-31 06:19 UTCGHSA enrichment
  58. 2026-07-30 16:28 UTCEPSS rescore
  59. 2026-07-30 01:30 UTCEPSS rescore
  60. 2026-07-29 12:33 UTCEG score recompute
  61. 2026-07-29 12:33 UTCGHSA enrichment
  62. 2026-07-28 15:36 UTCEPSS rescore
  63. 2026-07-27 14:13 UTCEPSS rescore
  64. 2026-07-27 09:37 UTCEG score recompute
  65. 2026-07-27 09:37 UTCGHSA enrichment
  66. 2026-07-26 14:54 UTCEPSS rescore
  67. 2026-07-26 14:54 UTCEPSS rescore
  68. 2026-07-25 14:18 UTCEPSS rescore
  69. 2026-07-24 14:17 UTCEPSS rescore
  70. 2026-07-23 14:18 UTCEPSS rescore
  71. 2026-07-23 03:16 UTCEG score recompute
  72. 2026-07-22 14:08 UTCEPSS rescore
  73. 2026-07-21 15:24 UTCEPSS rescore
  74. 2026-07-20 17:08 UTCEPSS rescore
  75. 2026-07-19 14:31 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-45348?
CVE-2026-45348 is a high vulnerability published on May 28, 2026. pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev100, the packages.js template at src/pyload/webui/app/themes/modern/templates/js/packages.js:172 interpolates a stored link URL into a template literal inside single-quoted HTML and then writes the result to…
When was CVE-2026-45348 disclosed?
CVE-2026-45348 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on May 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45348 actively exploited?
CVE-2026-45348 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 90.3% of all scored CVEs.
What is the CVSS score of CVE-2026-45348?
CVE-2026-45348 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-45348?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45348, 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-2026-45348

Explore →

Is Your Infrastructure Affected by CVE-2026-45348?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs