CVE-2023-22493

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.8% (55th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated
8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.8%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

RSSHub is an open source RSS feed generator. RSSHub is vulnerable to Server-Side Request Forgery (SSRF) attacks. This vulnerability allows an attacker to send arbitrary HTTP requests from the server to other servers or resources on the network. An attacker can exploit this vulnerability by sending a request to the affected routes with a malicious URL. An attacker could also use this vulnerability to send requests to internal or any other servers or resources on the network, potentially gain access to sensitive information that would not normally be accessible and amplifying the impact of the attack. The patch for this issue can be found in commit a66cbcf.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

January 13, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Aug 27, 2026
Patch available. Sources: github_pr, github, github_commit.
GitHub advisoryMentions a patch (unverified)

SSRF vulnerability · Advisory · DIYgod/RSSHub · GitHub

https://github.com/DIYgod/RSSHub/security/advisories/GHSA-64wp-jh9p-5cg2
GitHub pull request

feat(config)!: unsafe domain toggle

Fix merged in DIYgod/RSSHub PR #11588 on 2023-01-10 — awaiting tagged release

https://github.com/DIYgod/RSSHub/pull/11588
GitHub commit

commit a66cbcf6eebc (DIYgod/RSSHub)

Fix landed in DIYgod/RSSHub commit a66cbcf6eebc — awaiting tagged release

https://github.com/DIYgod/RSSHub/commit/a66cbcf6eebc700bf97ab097f404f16ab415506a

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
rsshub—
  • every version up to 1.0.0-master.a66cbcf: fixed in 1.0.0-master.a66cbcf
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 34× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 93 of 201 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 7 repeat rows among the latest 100 are merged into the row they repeat. The 108 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  2. 2026-10-22 16:30 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  4. 2026-10-21 04:58 UTCEG score recompute
  5. 2026-10-20 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  6. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  7. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  8. 2026-10-18 08:13 UTCEG score recompute
  9. 2026-10-17 16:29 UTCEPSS rescoreEPSS 0.8% · 55th percentile
  10. 2026-10-16 16:35 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  11. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  12. 2026-10-15 01:24 UTCOSV refresh
  13. 2026-10-14 16:29 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  14. 2026-10-13 16:29 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  15. 2026-10-12 18:36 UTCEG score recompute
  16. 2026-10-12 16:30 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  17. 2026-10-11 21:59 UTCEG score recompute
  18. 2026-10-11 13:45 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  19. 2026-10-10 19:57 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  20. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  21. 2026-10-08 17:05 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  22. 2026-10-07 23:45 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  23. 2026-10-06 15:14 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  24. 2026-10-05 17:40 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  25. 2026-10-04 23:19 UTCEPSS rescoreEPSS 0.8% · 54th percentile
Show 68 more
  1. 2026-10-03 14:23 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  2. 2026-10-02 16:23 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  3. 2026-10-01 19:47 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  4. 2026-09-30 16:17 UTCEG score recompute
  5. 2026-09-30 15:01 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  6. 2026-09-29 15:16 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  7. 2026-09-26 15:55 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  8. 2026-09-26 00:22 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  9. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  10. 2026-09-23 23:11 UTCOSV refresh
  11. 2026-09-23 13:45 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  12. 2026-09-22 14:45 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  13. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  14. 2026-09-19 15:38 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  15. 2026-09-18 19:25 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  16. 2026-09-17 19:24 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  17. 2026-09-16 14:05 UTCEPSS rescoreEPSS 0.8% · 54th percentile
  18. 2026-09-16 05:11 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  19. 2026-09-15 03:07 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  20. 2026-09-13 16:44 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  21. 2026-09-12 14:58 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  22. 2026-09-11 09:34 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  23. 2026-09-08 21:57 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  24. 2026-09-07 15:59 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  25. 2026-09-06 13:45 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  26. 2026-09-05 15:25 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  27. 2026-09-04 17:54 UTCOSV refresh
  28. 2026-09-04 13:57 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  29. 2026-09-04 05:04 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  30. 2026-09-02 14:09 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  31. 2026-09-01 13:51 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  32. 2026-08-30 19:15 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  33. 2026-08-30 01:19 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  34. 2026-08-28 21:38 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  35. 2026-08-27 14:22 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  36. 2026-08-26 14:43 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  37. 2026-08-25 13:46 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  38. 2026-08-24 14:14 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  39. 2026-08-23 00:17 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  40. 2026-08-21 23:46 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  41. 2026-08-20 22:53 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  42. 2026-08-19 17:01 UTCEPSS rescoreEPSS 0.8% · 53rd percentile
  43. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  44. 2026-08-18 05:04 UTCOSV refresh
  45. 2026-08-17 13:44 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  46. 2026-08-16 14:53 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  47. 2026-08-16 02:12 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  48. 2026-08-15 01:27 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  49. 2026-08-13 21:58 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  50. 2026-08-12 13:48 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  51. 2026-08-09 13:44 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  52. 2026-08-08 16:34 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  53. 2026-08-07 16:24 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  54. 2026-08-06 13:44 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  55. 2026-08-05 19:15 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  56. 2026-08-04 15:07 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  57. 2026-08-04 10:35 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  58. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  59. 2026-08-02 23:57 UTCOSV refresh
  60. 2026-08-02 02:24 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  61. 2026-08-01 04:13 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  62. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  63. 2026-07-30 01:28 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  64. 2026-07-28 15:34 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  65. 2026-07-26 14:52 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  66. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  67. 2026-07-24 14:15 UTCEPSS rescoreEPSS 0.8% · 52nd percentile
  68. 2026-07-23 14:16 UTCEPSS rescoreEPSS 0.8% · 52nd percentile

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2023-22493?
CVE-2023-22493 is a high-severity vulnerability; its CVE record was published on January 13, 2023. RSSHub is an open source RSS feed generator. RSSHub is vulnerable to Server-Side Request Forgery (SSRF) attacks. This vulnerability allows an attacker to send arbitrary HTTP requests from the server to other servers or resources on the network. An attacker can exploit this vulnerability by sending…
When was the CVE record for CVE-2023-22493 published?
The CVE record for CVE-2023-22493 was published on January 13, 2023. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of November 21, 2024; the record at its source may have been updated since.
Is CVE-2023-22493 actively exploited?
CVE-2023-22493 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2023-22493?
CVE-2023-22493 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-22493?
A fix for CVE-2023-22493 is available: update to the fixed version the vendor names in its advisory.

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